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2024 Volume 39 Issue 7
2024, 39(7): 1-7
doi: 10.3866/PKU.DXHX202404001
Abstract:
The National Experimental Teaching Demonstration Center for Chemistry and Chemical Engineering (Zhejiang University of Technology) is dedicated to cultivating innovative talents. Adhering to the university’s ethos of “hard work entrepreneurship, pioneering innovation, and striving for excellence”, and guided by principles of “innovation leadership, diversified integration, integrating teaching into research, and collaborative education”, the center has developed a distinctive model for talent cultivation. This model features “integration of science and education, multi-dimensional connectivity”. A new experimental teaching system was established, integrating science and engineering with theory and practice, alongside a novel platform that combines virtual and real environments for science and engineering education. Furthermore, an innovative entrepreneurship education mechanism that balances foundational learning with innovative practices and covers all aspects of chemistry and chemical engineering was created. This new paradigm, which highlights the unique characteristics of an engineering college, significantly enhances students’ practical abilities and innovative spirit. The achievements of this program can serve as a model and reference for laboratory construction and management in other similar universities.
The National Experimental Teaching Demonstration Center for Chemistry and Chemical Engineering (Zhejiang University of Technology) is dedicated to cultivating innovative talents. Adhering to the university’s ethos of “hard work entrepreneurship, pioneering innovation, and striving for excellence”, and guided by principles of “innovation leadership, diversified integration, integrating teaching into research, and collaborative education”, the center has developed a distinctive model for talent cultivation. This model features “integration of science and education, multi-dimensional connectivity”. A new experimental teaching system was established, integrating science and engineering with theory and practice, alongside a novel platform that combines virtual and real environments for science and engineering education. Furthermore, an innovative entrepreneurship education mechanism that balances foundational learning with innovative practices and covers all aspects of chemistry and chemical engineering was created. This new paradigm, which highlights the unique characteristics of an engineering college, significantly enhances students’ practical abilities and innovative spirit. The achievements of this program can serve as a model and reference for laboratory construction and management in other similar universities.
2024, 39(7): 8-12
doi: 10.3866/PKU.DXHX202404017
Abstract:
MOOCs offer solutions to traditional constraints faced in chemistry experimental teaching, such as limited lab space, insufficient equipment, and rigid scheduling, However, challenges like underutilization, reluctance from students, and faculty unfamiliarity can undermine these efforts. To address these issues, the National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Beijing University of Chemical Technology) has explored how to effectively use MOOCs to enhance teaching quality. The team has established an extensive array of online experimental teaching resources, implemented a synergistic blended learning model, and developed both a faculty skill enhancement program and a comprehensive system for tracking and feedback on teaching quality. These initiatives have significantly improved educational effects.
MOOCs offer solutions to traditional constraints faced in chemistry experimental teaching, such as limited lab space, insufficient equipment, and rigid scheduling, However, challenges like underutilization, reluctance from students, and faculty unfamiliarity can undermine these efforts. To address these issues, the National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Beijing University of Chemical Technology) has explored how to effectively use MOOCs to enhance teaching quality. The team has established an extensive array of online experimental teaching resources, implemented a synergistic blended learning model, and developed both a faculty skill enhancement program and a comprehensive system for tracking and feedback on teaching quality. These initiatives have significantly improved educational effects.
2024, 39(7): 13-19
doi: 10.12461/PKU.DXHX202404041
Abstract:
Over the years, the Chemistry Experiment Teaching Center at Zhengzhou University has taken various effective steps to address numerous challenges faced in undergraduate chemical laboratory education. These measures have led to the formation of a series of distinctive and efficient teaching management methods, which have significantly enhanced the quality of chemical laboratory instruction. This paper presents some of the initiatives and achievements of the development of the Chemistry Experiment Teaching Center at Zhengzhou University, aiming to provide useful references for the enhancement of laboratory teaching and management in higher education institutions.
Over the years, the Chemistry Experiment Teaching Center at Zhengzhou University has taken various effective steps to address numerous challenges faced in undergraduate chemical laboratory education. These measures have led to the formation of a series of distinctive and efficient teaching management methods, which have significantly enhanced the quality of chemical laboratory instruction. This paper presents some of the initiatives and achievements of the development of the Chemistry Experiment Teaching Center at Zhengzhou University, aiming to provide useful references for the enhancement of laboratory teaching and management in higher education institutions.
2024, 39(7): 20-25
doi: 10.12461/PKU.DXHX202404059
Abstract:
The National Experimental Teaching Demonstration Center of Chemistry (Shandong Normal University) is dedicated to the goal of cultivating high-quality, practically skilled talents. Adhering to a tradition of rigorous scholarship and strict teaching standards, the center actively promotes the reform and innovation of experimental courses, establishing a comprehensive experimental teaching system. Over the years, the center has developed both in terms of software conditions, such as experimental teaching concepts and systems, and hardware conditions, such as teaching equipment and teaching environments. The team of experimental teachers has been gradually optimized, and their teaching abilities have been steadily improved. A unique talent training system has been formed, which focuses on cultivating students’ comprehensive and innovative abilities. The center fully leverages its role as a national experimental teaching demonstration center, making significant contributions to the cultivation of innovative talents.
The National Experimental Teaching Demonstration Center of Chemistry (Shandong Normal University) is dedicated to the goal of cultivating high-quality, practically skilled talents. Adhering to a tradition of rigorous scholarship and strict teaching standards, the center actively promotes the reform and innovation of experimental courses, establishing a comprehensive experimental teaching system. Over the years, the center has developed both in terms of software conditions, such as experimental teaching concepts and systems, and hardware conditions, such as teaching equipment and teaching environments. The team of experimental teachers has been gradually optimized, and their teaching abilities have been steadily improved. A unique talent training system has been formed, which focuses on cultivating students’ comprehensive and innovative abilities. The center fully leverages its role as a national experimental teaching demonstration center, making significant contributions to the cultivation of innovative talents.
2024, 39(7): 26-31
doi: 10.12461/PKU.DXHX202404112
Abstract:
National Demonstration Center for Experimental Chemistry Education (Nankai University) was one of the first national demonstration centers selected in 2006. Over the past decade, guided by the principles of “strengthening the foundation, emphasizing integration, highlighting innovation, cultivating ability and improving quality”, the center has adhered to the development of students. It is committed to cultivating high-level chemistry talents with solid foundational knowledge, proficient experimental skills, diligence in thinking, and adaptness at innovation. This paper introduces the reform measures undertaken by the center over the past five years in the construction of an experimental teaching system, enhancing the teaching capabilities of the faculty, and promoting open exchanges. It aims to provide a reference for experimental teaching in higher education institutions.
National Demonstration Center for Experimental Chemistry Education (Nankai University) was one of the first national demonstration centers selected in 2006. Over the past decade, guided by the principles of “strengthening the foundation, emphasizing integration, highlighting innovation, cultivating ability and improving quality”, the center has adhered to the development of students. It is committed to cultivating high-level chemistry talents with solid foundational knowledge, proficient experimental skills, diligence in thinking, and adaptness at innovation. This paper introduces the reform measures undertaken by the center over the past five years in the construction of an experimental teaching system, enhancing the teaching capabilities of the faculty, and promoting open exchanges. It aims to provide a reference for experimental teaching in higher education institutions.
2024, 39(7): 32-39
doi: 10.12461/PKU.DXHX202404122
Abstract:
The cultivation of top-notch innovative talents primarily lies in “soul casting”. Integrating professional education with ideological and political education, and prioritizing the education of ideals, beliefs, and patriotism in the cultivation of outstanding students, ensure that top-notch innovative talents truly serve the needs of the nation. The Chemistry National Experimental Teaching Demonstration Center of Northwest University actively explores a model for talent cultivation that integrates ideological and political education with the discipline’s unique characteristics. By strengthening the construction of teachers’ ethics and style, the ideological and political education system, the course case library, and the evaluation mechanism for ideological and political, the center effectively enhances the practical effectiveness of “curriculum ideological and political education”, thereby enhancing students’ abilities to correctly understand, analyze, and solve problems. It also fosters their sense of responsibility and mission to explore the unknown, pursue the truth, and strive for the peak of science.
The cultivation of top-notch innovative talents primarily lies in “soul casting”. Integrating professional education with ideological and political education, and prioritizing the education of ideals, beliefs, and patriotism in the cultivation of outstanding students, ensure that top-notch innovative talents truly serve the needs of the nation. The Chemistry National Experimental Teaching Demonstration Center of Northwest University actively explores a model for talent cultivation that integrates ideological and political education with the discipline’s unique characteristics. By strengthening the construction of teachers’ ethics and style, the ideological and political education system, the course case library, and the evaluation mechanism for ideological and political, the center effectively enhances the practical effectiveness of “curriculum ideological and political education”, thereby enhancing students’ abilities to correctly understand, analyze, and solve problems. It also fosters their sense of responsibility and mission to explore the unknown, pursue the truth, and strive for the peak of science.
2024, 39(7): 40-48
doi: 10.12461/PKU.DXHX202404124
Abstract:
The Basic Chemistry Experimental Center adheres to goal-oriented principles, emphasizes moral cultivation, and strengthens laboratory safety education. It has established a multi-level, three-dimensional curriculum teaching system and rich teaching resources. The center builds first-class courses, remains student-centered, and extensively implements classroom teaching reforms such as discussion-based, online-offline hybrid, and flipped classroom approaches. It guides students to participate in discipline competitions and experimental design competitions, uses competitions as training. This continuous update of experimental teaching projects enhances the teaching abilities of experimental instructors. By fully utilizing the laboratory as the main battlefield for practical teaching, the center adapts to the new era’s demands for cultivating top-tier talents in chemical specialties. This improvement elevates the educational capabilities of the experimental center, positioning it at the forefront of similar institutions nationwide.
The Basic Chemistry Experimental Center adheres to goal-oriented principles, emphasizes moral cultivation, and strengthens laboratory safety education. It has established a multi-level, three-dimensional curriculum teaching system and rich teaching resources. The center builds first-class courses, remains student-centered, and extensively implements classroom teaching reforms such as discussion-based, online-offline hybrid, and flipped classroom approaches. It guides students to participate in discipline competitions and experimental design competitions, uses competitions as training. This continuous update of experimental teaching projects enhances the teaching abilities of experimental instructors. By fully utilizing the laboratory as the main battlefield for practical teaching, the center adapts to the new era’s demands for cultivating top-tier talents in chemical specialties. This improvement elevates the educational capabilities of the experimental center, positioning it at the forefront of similar institutions nationwide.
2024, 39(7): 49-55
doi: 10.12461/PKU.DXHX202404155
Abstract:
The National Demonstration Center for Experimental Chemistry Education at Jilin University has introduced various teaching methods, including popular science enlightenment, interest guidance, and experimental training, tailored to students at different stages. From foundational to advanced levels, this comprehensive and three-dimensional practical education model integrates enlightenment, guidance, and cultivation, and has demonstrated significant success. Moving forward, the center will continue to explore and implement strategies for cultivating top-notch chemical talents to meet the demand for individuals with critical and innovative thinking skills in the new era.
The National Demonstration Center for Experimental Chemistry Education at Jilin University has introduced various teaching methods, including popular science enlightenment, interest guidance, and experimental training, tailored to students at different stages. From foundational to advanced levels, this comprehensive and three-dimensional practical education model integrates enlightenment, guidance, and cultivation, and has demonstrated significant success. Moving forward, the center will continue to explore and implement strategies for cultivating top-notch chemical talents to meet the demand for individuals with critical and innovative thinking skills in the new era.
2024, 39(7): 56-63
doi: 10.12461/PKU.DXHX202405001
Abstract:
Based on the demand for the construction of the “Four New Disciplines”, the multidisciplinary characteristics of Shandong University, and the development trend of cross-fertilization between chemistry majors and various disciplines, the Chemistry Experimental Teaching Center has constructed a comprehensive open and innovative chemistry experimental teaching system with multidisciplinary fusion. The center has also restructured its management framework and explored various aspects of laboratory construction and management, as well as the development of experimental technology teams. These efforts have yielded significant positive outcomes.
Based on the demand for the construction of the “Four New Disciplines”, the multidisciplinary characteristics of Shandong University, and the development trend of cross-fertilization between chemistry majors and various disciplines, the Chemistry Experimental Teaching Center has constructed a comprehensive open and innovative chemistry experimental teaching system with multidisciplinary fusion. The center has also restructured its management framework and explored various aspects of laboratory construction and management, as well as the development of experimental technology teams. These efforts have yielded significant positive outcomes.
2024, 39(7): 64-68
doi: 10.12461/PKU.DXHX202405005
Abstract:
To meet the demand for cultivating high-quality innovative talents in chemistry, the National Demonstration Center for Experimental Chemistry Education (Shaanxi Normal University) has actively explored various aspects, including management mechanisms, teaching models, public platform construction, and the development of information platforms. This comprehensive exploration has gradually established a new operational management model characterized by “concentrating resources on major tasks” and “joint construction and sharing”. Adhering to the experimental teaching philosophy of “integration, multi-level, research-oriented”, the center has constructed a complete teaching system that includes “basic, comprehensive, and innovative" components. The center has also established a shared platform aligned with modern chemistry disciplines, cultivated a team of excellent skills and innovative abilities. This has greatly contributed to cultivation of high-quality talents and scientific research. The center has become a vital base for cultivating students’ practical abilities and innovative awareness, as well as a practice and demonstration base for experimental education reform, providing a valuable and demonstration base for experimental teaching reform, providing a valuable model for the construction and operation of experimental chemistry education demonstration center in western universities, especially normal universities.
To meet the demand for cultivating high-quality innovative talents in chemistry, the National Demonstration Center for Experimental Chemistry Education (Shaanxi Normal University) has actively explored various aspects, including management mechanisms, teaching models, public platform construction, and the development of information platforms. This comprehensive exploration has gradually established a new operational management model characterized by “concentrating resources on major tasks” and “joint construction and sharing”. Adhering to the experimental teaching philosophy of “integration, multi-level, research-oriented”, the center has constructed a complete teaching system that includes “basic, comprehensive, and innovative" components. The center has also established a shared platform aligned with modern chemistry disciplines, cultivated a team of excellent skills and innovative abilities. This has greatly contributed to cultivation of high-quality talents and scientific research. The center has become a vital base for cultivating students’ practical abilities and innovative awareness, as well as a practice and demonstration base for experimental education reform, providing a valuable and demonstration base for experimental teaching reform, providing a valuable model for the construction and operation of experimental chemistry education demonstration center in western universities, especially normal universities.
2024, 39(7): 69-75
doi: 10.12461/PKU.DXHX202405008
Abstract:
As societal demands for safety competence in chemical professionals continue to rise, higher education institutions have increasingly recognized the significance of chemical laboratory safety education. However, current chemical safety education often lacks systematic integration. To address this issue, the College of Chemistry at Jilin University has utilized its National Demonstration Center for Experimental Chemistry as a platform to implement an Outcome-Based Education (OBE) approach. This strategy involves a dual support system based on hardware infrastructure and knowledge dissemination. It adopts a triple integration pathway, combining theory with practice, blending in-class and extracurricular activities, and merging virtual simulations and real-world experiences. This system aims to progressively enhance students’ safety awareness, knowledge, and emergency response abilities, thereby comprehensively improving their chemical safety literacy.
As societal demands for safety competence in chemical professionals continue to rise, higher education institutions have increasingly recognized the significance of chemical laboratory safety education. However, current chemical safety education often lacks systematic integration. To address this issue, the College of Chemistry at Jilin University has utilized its National Demonstration Center for Experimental Chemistry as a platform to implement an Outcome-Based Education (OBE) approach. This strategy involves a dual support system based on hardware infrastructure and knowledge dissemination. It adopts a triple integration pathway, combining theory with practice, blending in-class and extracurricular activities, and merging virtual simulations and real-world experiences. This system aims to progressively enhance students’ safety awareness, knowledge, and emergency response abilities, thereby comprehensively improving their chemical safety literacy.
2024, 39(7): 76-81
doi: 10.12461/PKU.DXHX202405011
Abstract:
Taking the major of chemical engineering and technology in North University of China as an example, a “learning, training, competition and creation” quadratic chemical talent cultivation model has been constructed. Based on solid theoretical teaching, the model integrates experiments, internships and practical training, and combines with disciplinary competitions to comprehensively improve the practical innovation ability of students. After years of practice, this model not only strengthens the ability of students to deal with complex engineering problems, but also significantly improves the level of teachers, cultivates engineering innovative talents for the industry, and shows good exemplary and promotional value.
Taking the major of chemical engineering and technology in North University of China as an example, a “learning, training, competition and creation” quadratic chemical talent cultivation model has been constructed. Based on solid theoretical teaching, the model integrates experiments, internships and practical training, and combines with disciplinary competitions to comprehensively improve the practical innovation ability of students. After years of practice, this model not only strengthens the ability of students to deal with complex engineering problems, but also significantly improves the level of teachers, cultivates engineering innovative talents for the industry, and shows good exemplary and promotional value.
2024, 39(7): 82-92
doi: 10.12461/PKU.DXHX202405012
Abstract:
The National Demonstration Center for Experimental Chemistry Education (Wuhan University) adheres to the concept of strengthening the foundation while fostering innovation. Since 2018, the center has dismantled the barriers of secondary disciplines and established experimental courses at the primary discipline level. A three-tier platform for experimental education—comprising basic, comprehensive, and scientific research training—has been developed to cultivate talents with strong foundations, broad perspectives, high quality, and innovative thinking. The center has enhanced team building, curriculum reform, the synergy between teaching and research, ideological and political education, and entrepreneurship education through initiatives such as young faculty forums, multi-role assignments, integration of full-time and part-time faculties, and the integration of science and education as well as industry and education. Emphasizing safety, sharing, and exemplary guidance, the center has achieved significant social benefits.
The National Demonstration Center for Experimental Chemistry Education (Wuhan University) adheres to the concept of strengthening the foundation while fostering innovation. Since 2018, the center has dismantled the barriers of secondary disciplines and established experimental courses at the primary discipline level. A three-tier platform for experimental education—comprising basic, comprehensive, and scientific research training—has been developed to cultivate talents with strong foundations, broad perspectives, high quality, and innovative thinking. The center has enhanced team building, curriculum reform, the synergy between teaching and research, ideological and political education, and entrepreneurship education through initiatives such as young faculty forums, multi-role assignments, integration of full-time and part-time faculties, and the integration of science and education as well as industry and education. Emphasizing safety, sharing, and exemplary guidance, the center has achieved significant social benefits.
2024, 39(7): 93-98
doi: 10.12461/PKU.DXHX202405013
Abstract:
Under the current situation, the cultivation of innovative talents is paramount for building an innovative country and developing the local economy. Higher education institutions play a critical role in this process. The article addresses the specific challenges encountered in the cultivation of innovative talents in chemical materials at local colleges. It introduces a new concept for talent development that emphasizes interdisciplinary advantages, innovative thinking, engineering practice skills, and international perspective and competitiveness. Guided by the new concept, a multifaced and comprehensive “Four Cooperations and Four Integrations” model is constructed. This model promotes team collaboration and interdisciplinary integration, resource sharing and teaching-research integration, university-enterprise cooperation and industry-academia-research innovative talents in chemical materials at local colleges.
Under the current situation, the cultivation of innovative talents is paramount for building an innovative country and developing the local economy. Higher education institutions play a critical role in this process. The article addresses the specific challenges encountered in the cultivation of innovative talents in chemical materials at local colleges. It introduces a new concept for talent development that emphasizes interdisciplinary advantages, innovative thinking, engineering practice skills, and international perspective and competitiveness. Guided by the new concept, a multifaced and comprehensive “Four Cooperations and Four Integrations” model is constructed. This model promotes team collaboration and interdisciplinary integration, resource sharing and teaching-research integration, university-enterprise cooperation and industry-academia-research innovative talents in chemical materials at local colleges.
2024, 39(7): 99-105
doi: 10.12461/PKU.DXHX202405016
Abstract:
As is well known, experimental teaching is crucial for cultivating studentsʼ practical and innovative abilities. How to overcome the spatial and temporal limitations of classroom teaching and ensure the open utilization of experimental resources is an important task for all the experimental teaching centers in Chinese universities. This article takes the National Experimental Teaching Demonstration Center for Chemistry (Beijing Normal University) as an example to introduce the multi-level and multidimensional laboratory access strategies. The center incorporates the well-organized “second classroom activities” into the experimental teaching system for supporting undergraduates to actively participate various innovation and entrepreneurship activities, academic competitions, scientific research, and science popularization. These initiatives provide students with diverse, self-driven, and innovative-focused practical training opportunities, effectively strengthening the role of experimental teaching centers in cultivating innovative talents and serving as the demonstration base for basic education. These efforts have proven to be effective and have significant educational outcomes, making them worthy of wider adoption.
As is well known, experimental teaching is crucial for cultivating studentsʼ practical and innovative abilities. How to overcome the spatial and temporal limitations of classroom teaching and ensure the open utilization of experimental resources is an important task for all the experimental teaching centers in Chinese universities. This article takes the National Experimental Teaching Demonstration Center for Chemistry (Beijing Normal University) as an example to introduce the multi-level and multidimensional laboratory access strategies. The center incorporates the well-organized “second classroom activities” into the experimental teaching system for supporting undergraduates to actively participate various innovation and entrepreneurship activities, academic competitions, scientific research, and science popularization. These initiatives provide students with diverse, self-driven, and innovative-focused practical training opportunities, effectively strengthening the role of experimental teaching centers in cultivating innovative talents and serving as the demonstration base for basic education. These efforts have proven to be effective and have significant educational outcomes, making them worthy of wider adoption.
2024, 39(7): 106-109
doi: 10.12461/PKU.DXHX202405021
Abstract:
The National Demonstration Center for Experimental Chemistry & Chemical Engineering (Anhui University) aims to cultivate high-quality innovative talents with a sense of social responsibility, humanistic qualities, scientific spirit and an international perspective, contributing to the national and regional economic and social development. In the context of engineering education certification and new engineering construction, the center actively promotes the development of practical courses that combine virtual and real elements. Through the simulation of real production scenarios, the center has significantly enhanced the interaction efficiency between teachers and students, thereby fostering students’ innovation abilities, teamwork skills, and engineering practice capabilities. The construction of the center’s virtual and real combination practical curriculum also solved key challenges in internships for chemical engineering and related fields.
The National Demonstration Center for Experimental Chemistry & Chemical Engineering (Anhui University) aims to cultivate high-quality innovative talents with a sense of social responsibility, humanistic qualities, scientific spirit and an international perspective, contributing to the national and regional economic and social development. In the context of engineering education certification and new engineering construction, the center actively promotes the development of practical courses that combine virtual and real elements. Through the simulation of real production scenarios, the center has significantly enhanced the interaction efficiency between teachers and students, thereby fostering students’ innovation abilities, teamwork skills, and engineering practice capabilities. The construction of the center’s virtual and real combination practical curriculum also solved key challenges in internships for chemical engineering and related fields.
2024, 39(7): 110-115
doi: 10.12461/PKU.DXHX202405022
Abstract:
Moral education is the mission of higher education in the new era, and experimental teaching is an important part of this mission. Under the background of the “101 plan”, this article introduces the experiences of the construction and development of Zhejiang University National Chemical Experimental Teaching Demonstration Center from the aspects of experimental teaching system, experimental teaching content, experimental teaching team, experimental teaching informatization construction, and the construction of both software and hardware. Relying on the center’s construction, we adhere to the new education concept that integrates personality, quality, ability and knowledge (KAQ2.0). This approach continuously improves our ability to independently cultivate top-notch innovative talents in basic disciplines.
Moral education is the mission of higher education in the new era, and experimental teaching is an important part of this mission. Under the background of the “101 plan”, this article introduces the experiences of the construction and development of Zhejiang University National Chemical Experimental Teaching Demonstration Center from the aspects of experimental teaching system, experimental teaching content, experimental teaching team, experimental teaching informatization construction, and the construction of both software and hardware. Relying on the center’s construction, we adhere to the new education concept that integrates personality, quality, ability and knowledge (KAQ2.0). This approach continuously improves our ability to independently cultivate top-notch innovative talents in basic disciplines.
2024, 39(7): 116-120
doi: 10.12461/PKU.DXHX202405031
Abstract:
Based on the construction and practice achievements of the National Experimental Teaching Demonstration Center of Applied Chemistry (University of Jinan) from 2018 to 2022, this paper summarized and analyzed the effectiveness and experience of the center’s development. The analysis covers aspects such as management and operation mechanisms, teaching reform research, experimental teaching conditions, faculty development, and the effectiveness of demonstration and leadership. The paper also identifies existing problems and shortcomings of the center and provides an outlook on future development plans. The demonstration center has adopted a "three-stage" training methodology, implemented "ability-literacy oriented" experimental courses, and built a comprehensive innovation and practice platform integrating "production, learning, research and innovation". The demonstration center effectively cultivated the practical ability and innovative spirit of students and played an important role in the demonstration radiation of enterprises, public institutions and local colleges and universities.
Based on the construction and practice achievements of the National Experimental Teaching Demonstration Center of Applied Chemistry (University of Jinan) from 2018 to 2022, this paper summarized and analyzed the effectiveness and experience of the center’s development. The analysis covers aspects such as management and operation mechanisms, teaching reform research, experimental teaching conditions, faculty development, and the effectiveness of demonstration and leadership. The paper also identifies existing problems and shortcomings of the center and provides an outlook on future development plans. The demonstration center has adopted a "three-stage" training methodology, implemented "ability-literacy oriented" experimental courses, and built a comprehensive innovation and practice platform integrating "production, learning, research and innovation". The demonstration center effectively cultivated the practical ability and innovative spirit of students and played an important role in the demonstration radiation of enterprises, public institutions and local colleges and universities.
2024, 39(7): 121-128
doi: 10.12461/PKU.DXHX202405037
Abstract:
The National Demonstration Center for Experimental Chemistry Education (Harbin Institute of Technology) actively responds to the evolving demands for talent cultivation by focusing on the development of outstanding individuals. The center has proposed a talent training model that emphasizes “ideological and political guidance, integration of science (industry) and education, and a synergy of competition and innovation”. This model has led to the establishment of four-level experimental curriculum system and the promotion of experimental and practical teaching reforms through “five in one” approach. This comprehensive model and system highlight the unique characteristics of chemical and chemical engineering, fostering an innovative and entrepreneurial practice teaching framework. The center’s exploration of experimental and practical teaching reforms has yielded significant results, offering valuable insights and reference points for the construction of chemistry experimental teaching centers.
The National Demonstration Center for Experimental Chemistry Education (Harbin Institute of Technology) actively responds to the evolving demands for talent cultivation by focusing on the development of outstanding individuals. The center has proposed a talent training model that emphasizes “ideological and political guidance, integration of science (industry) and education, and a synergy of competition and innovation”. This model has led to the establishment of four-level experimental curriculum system and the promotion of experimental and practical teaching reforms through “five in one” approach. This comprehensive model and system highlight the unique characteristics of chemical and chemical engineering, fostering an innovative and entrepreneurial practice teaching framework. The center’s exploration of experimental and practical teaching reforms has yielded significant results, offering valuable insights and reference points for the construction of chemistry experimental teaching centers.
2024, 39(7): 129-139
doi: 10.12461/PKU.DXHX202405043
Abstract:
Under the “Double First Class” initiative, Fuzhou University Chemical Experiment Teaching Center has entered the stage of connotative development. The Center adheres to the schoolʼs four-in-one education philosophy: “value guidance, knowledge expansion, thinking training, and ability construction”, combined with the schoolʼs educational characteristics of “integration of science and technology, as well as basic and applied research”. Additionally, the center supports the universityʼs Chemistry Science Excellence 2.0 training plan and meets the evolving demands of new engineering and new medical science programs. This paper discusses the construction and reform strategies implemented at the national chemistry experimental teaching demonstration center in local universities. It covers the past five years of the “double first-class” construction experience of Fuzhou University Chemical Experimental Center in the past five years, focusing on experimental platform construction, experimental teaching reform, enhancement of experimental teaching and staff, and provision of popular science services. Emphasis is placed on the practical application and educational functions to significantly enhance the quality and depth of experimental teaching.
Under the “Double First Class” initiative, Fuzhou University Chemical Experiment Teaching Center has entered the stage of connotative development. The Center adheres to the schoolʼs four-in-one education philosophy: “value guidance, knowledge expansion, thinking training, and ability construction”, combined with the schoolʼs educational characteristics of “integration of science and technology, as well as basic and applied research”. Additionally, the center supports the universityʼs Chemistry Science Excellence 2.0 training plan and meets the evolving demands of new engineering and new medical science programs. This paper discusses the construction and reform strategies implemented at the national chemistry experimental teaching demonstration center in local universities. It covers the past five years of the “double first-class” construction experience of Fuzhou University Chemical Experimental Center in the past five years, focusing on experimental platform construction, experimental teaching reform, enhancement of experimental teaching and staff, and provision of popular science services. Emphasis is placed on the practical application and educational functions to significantly enhance the quality and depth of experimental teaching.
2024, 39(7): 140-146
doi: 10.12461/PKU.DXHX202405052
Abstract:
As an important base to support talent cultivation and discipline development, the National Demonstration Center for Experimental Chemistry Education at Northwest University effectively enhances students’ scientific research abilities and innovative thinking by constructing a three-level experimental course system and a four-stage practical teaching framework. Additionally, the center’s scientific instrumentation platform provides advanced technical support for research in chemistry and related disciplines, accelerating the production of scientific research results and promotes academic exchanges and cooperation. The center has also strengthened laboratory safety management, ensuring a reliable research and learning environment for both faculty and students. Moreover, the center actively engages in science popularization activities and external exchanges, enhancing the public scientific literacy and demonstrating the social value of the chemistry discipline. In the future, the center aims to optimize its teaching mode, enhance its research support services, and contribute more significantly to the cultivation of high-quality chemical talents and the advancement of the chemistry discipline.
As an important base to support talent cultivation and discipline development, the National Demonstration Center for Experimental Chemistry Education at Northwest University effectively enhances students’ scientific research abilities and innovative thinking by constructing a three-level experimental course system and a four-stage practical teaching framework. Additionally, the center’s scientific instrumentation platform provides advanced technical support for research in chemistry and related disciplines, accelerating the production of scientific research results and promotes academic exchanges and cooperation. The center has also strengthened laboratory safety management, ensuring a reliable research and learning environment for both faculty and students. Moreover, the center actively engages in science popularization activities and external exchanges, enhancing the public scientific literacy and demonstrating the social value of the chemistry discipline. In the future, the center aims to optimize its teaching mode, enhance its research support services, and contribute more significantly to the cultivation of high-quality chemical talents and the advancement of the chemistry discipline.
2024, 39(7): 147-152
doi: 10.12461/PKU.DXHX202405059
Abstract:
Taking the opportunity of the periodic evaluation of the National Experimental Teaching Demonstration Center, this article comprehensively summarizes the construction experience of the National Experimental Teaching Demonstration Center for Chemistry (Hunan University) from 2018 to 2022, including the establishment of management system and safety responsibility system, improvement of teaching conditions, construction of experimental teaching system, development of experimental courses and textbooks, achievements in talent cultivation, construction of teaching teams, and the leading role of demonstration. Additionally, the construction plan for the next stage is formulated from several aspects, such as the demonstration centerʼs carrying capacity, optimization of the experimental teaching system and development of experimental projects, digital construction of experiments, construction of teaching teams, and enhancement of its demonstration role. These construction strategies aim to better support the construction of national first-class undergraduate programs in chemistry, chemical engineering and applied chemistry at Hunan university, thereby promoting the cultivation of high-quality talents in chemistry and chemical engineering.
Taking the opportunity of the periodic evaluation of the National Experimental Teaching Demonstration Center, this article comprehensively summarizes the construction experience of the National Experimental Teaching Demonstration Center for Chemistry (Hunan University) from 2018 to 2022, including the establishment of management system and safety responsibility system, improvement of teaching conditions, construction of experimental teaching system, development of experimental courses and textbooks, achievements in talent cultivation, construction of teaching teams, and the leading role of demonstration. Additionally, the construction plan for the next stage is formulated from several aspects, such as the demonstration centerʼs carrying capacity, optimization of the experimental teaching system and development of experimental projects, digital construction of experiments, construction of teaching teams, and enhancement of its demonstration role. These construction strategies aim to better support the construction of national first-class undergraduate programs in chemistry, chemical engineering and applied chemistry at Hunan university, thereby promoting the cultivation of high-quality talents in chemistry and chemical engineering.
2024, 39(7): 153-159
doi: 10.12461/PKU.DXHX202405064
Abstract:
This article summarizes the exploration and practice on the experimental chemistry education in the National Demonstration Center for Experimental Chemistry Education at College of Chemistry and Molecular Engineering in Peking University, including constructing an innovative practical teaching curriculum, institutionalizing laboratory management system, enhancing the skills of technical staffs, and building science popularization platforms. All the efforts focus on “improving the quality of experimental teaching” and aim to “build an innovative chemistry practical teaching system”, promoting the growth of talent undergraduates with innovative abilities and high academic standards.
This article summarizes the exploration and practice on the experimental chemistry education in the National Demonstration Center for Experimental Chemistry Education at College of Chemistry and Molecular Engineering in Peking University, including constructing an innovative practical teaching curriculum, institutionalizing laboratory management system, enhancing the skills of technical staffs, and building science popularization platforms. All the efforts focus on “improving the quality of experimental teaching” and aim to “build an innovative chemistry practical teaching system”, promoting the growth of talent undergraduates with innovative abilities and high academic standards.
2024, 39(7): 160-165
doi: 10.12461/PKU.DXHX202405068
Abstract:
Chemistry experiment teaching center is an important platform for developing chemistry teaching in universities, significantly contributing to the cultivation of studentsʼ innovative consciousness and practical abilities. Combining with the construction of national experimental teaching demonstration center of chemistry at Hainan Normal University, this paper analyzes the center’s achievements in infrastructure development, the establishment of an innovative practical teaching system, the cultivation of studentsʼ innovative entrepreneurial skills, the development of experimental teaching team, and the center’s role in local demonstration and outreach. The discussion aims to illustrate how the experimental teaching center leverages its resources to contribute to the training of high-level, multifaced, innovative talent.
Chemistry experiment teaching center is an important platform for developing chemistry teaching in universities, significantly contributing to the cultivation of studentsʼ innovative consciousness and practical abilities. Combining with the construction of national experimental teaching demonstration center of chemistry at Hainan Normal University, this paper analyzes the center’s achievements in infrastructure development, the establishment of an innovative practical teaching system, the cultivation of studentsʼ innovative entrepreneurial skills, the development of experimental teaching team, and the center’s role in local demonstration and outreach. The discussion aims to illustrate how the experimental teaching center leverages its resources to contribute to the training of high-level, multifaced, innovative talent.
2024, 39(7): 166-171
doi: 10.12461/PKU.DXHX202405069
Abstract:
Experimental teaching is an important way to cultivate chemical talent, with experimental center serving as the primary platform for chemical laboratory education. The quality and construction level of the center significantly impact students’ scientific literacy and abilities. Amidst a new wave of university teaching reforms and the pursuit of world-class university status, the chemistry experimental center face new challenges, mainly from the diverse needs of departments under major categories enrollment, and the demands for integrated Bachelor-Doctoral talent cultivation under the Strengthening Basic Disciplines Program. To address these needs, experimental teaching must rely on a high-quality, multi-level experimental teaching platform. Thus, the chemistry experimental center has built up a foundational chemistry experimental teaching team, adhering to the principle of mutual teaching and learning, and promoting teaching through research. High-achieving, research-active faculty members who are passionate about teaching have been invited to join the team, participating in lectures, seminars, and teaching improvement initiatives. This approach has effectively met the diverse needs of multilevel talent cultivation, yielding positive results.
Experimental teaching is an important way to cultivate chemical talent, with experimental center serving as the primary platform for chemical laboratory education. The quality and construction level of the center significantly impact students’ scientific literacy and abilities. Amidst a new wave of university teaching reforms and the pursuit of world-class university status, the chemistry experimental center face new challenges, mainly from the diverse needs of departments under major categories enrollment, and the demands for integrated Bachelor-Doctoral talent cultivation under the Strengthening Basic Disciplines Program. To address these needs, experimental teaching must rely on a high-quality, multi-level experimental teaching platform. Thus, the chemistry experimental center has built up a foundational chemistry experimental teaching team, adhering to the principle of mutual teaching and learning, and promoting teaching through research. High-achieving, research-active faculty members who are passionate about teaching have been invited to join the team, participating in lectures, seminars, and teaching improvement initiatives. This approach has effectively met the diverse needs of multilevel talent cultivation, yielding positive results.
2024, 39(7): 172-179
doi: 10.12461/PKU.DXHX202405083
Abstract:
The National Demonstration Center for Experimental Chemistry Education (Lanzhou University) is an important support platform for the "Double First-Class" initiative in the university’s chemistry discipline. It remains committed to the mission of the Party’s education, implementing the fundamental task of cultivating virtues and talents, and aims to nurture innovative talents through a high-quality experimental teaching resource sharing platform. The center has developed a three-level experimental teaching system of “Foundation → Comprehensive → Scientific research training”. In the reform of experimental teaching, the center emphasizes the integration of science and education, promotes development through competition, and fosters studentsʼ innovation abilities. High-level experimental teaching supports the cultivation of high-quality innovative chemistry talents, enhancing students’ practical and innovative capabilities and overall excellence. Significant progress has been made in curriculum and textbook construction, experimental teaching reform and research, as well as laboratory construction, with notable demonstration and outreach effects.
The National Demonstration Center for Experimental Chemistry Education (Lanzhou University) is an important support platform for the "Double First-Class" initiative in the university’s chemistry discipline. It remains committed to the mission of the Party’s education, implementing the fundamental task of cultivating virtues and talents, and aims to nurture innovative talents through a high-quality experimental teaching resource sharing platform. The center has developed a three-level experimental teaching system of “Foundation → Comprehensive → Scientific research training”. In the reform of experimental teaching, the center emphasizes the integration of science and education, promotes development through competition, and fosters studentsʼ innovation abilities. High-level experimental teaching supports the cultivation of high-quality innovative chemistry talents, enhancing students’ practical and innovative capabilities and overall excellence. Significant progress has been made in curriculum and textbook construction, experimental teaching reform and research, as well as laboratory construction, with notable demonstration and outreach effects.
2024, 39(7): 180-187
doi: 10.12461/PKU.DXHX202405095
Abstract:
National Demonstration Center of Experimental Chemistry (Fudan University), has built the Experimental Curriculum System of “Cognitive Experience-Strengthening Foundation-Frontier Innovation”. The center has always aimed at cultivating first-class undergraduates and continuously absorbed advanced educational concepts from both domestic and foreign sources. Focusing on the needs of the country and society for talents, we have strengthened the systematic construction of the curriculum, and expanded its scope, enhancing the systematic construction of the curriculum. Aligned with the national “education digitalization” strategy, the center promotes digital educational resources, practices innovative training, and optimizes the construction of demonstration platforms to achieve sustainable development.
National Demonstration Center of Experimental Chemistry (Fudan University), has built the Experimental Curriculum System of “Cognitive Experience-Strengthening Foundation-Frontier Innovation”. The center has always aimed at cultivating first-class undergraduates and continuously absorbed advanced educational concepts from both domestic and foreign sources. Focusing on the needs of the country and society for talents, we have strengthened the systematic construction of the curriculum, and expanded its scope, enhancing the systematic construction of the curriculum. Aligned with the national “education digitalization” strategy, the center promotes digital educational resources, practices innovative training, and optimizes the construction of demonstration platforms to achieve sustainable development.
2024, 39(7): 188-192
doi: 10.12461/PKU.DXHX202405107
Abstract:
Chemical experiments serve as a vital medium for imparting theoretical knowledge, fostering experimental skills, and shaping values. The National Demonstration Center for Experimental Chemical Education at Anhui Normal University has established a hierarchical experimental teaching system, spanning foundational, comprehensive, professional, innovative, and practical levels. This system deeply integrates political education, scientific research, academic competitions, employment and entrepreneurship with experimental teaching. It continuously refines the experimental teaching content and employs diverse experimental teaching methods. This approach promotes the coordinated development of teachers in scientific research, teaching research, and practical teaching. By implementing the Outcome-Based Education (OBE) concept, it cultivates and trains studentsʼ innovative thinking and scientific literacy based on a solid foundation of experimental skills.
Chemical experiments serve as a vital medium for imparting theoretical knowledge, fostering experimental skills, and shaping values. The National Demonstration Center for Experimental Chemical Education at Anhui Normal University has established a hierarchical experimental teaching system, spanning foundational, comprehensive, professional, innovative, and practical levels. This system deeply integrates political education, scientific research, academic competitions, employment and entrepreneurship with experimental teaching. It continuously refines the experimental teaching content and employs diverse experimental teaching methods. This approach promotes the coordinated development of teachers in scientific research, teaching research, and practical teaching. By implementing the Outcome-Based Education (OBE) concept, it cultivates and trains studentsʼ innovative thinking and scientific literacy based on a solid foundation of experimental skills.
2024, 39(7): 193-199
doi: 10.12461/PKU.DXHX202405116
Abstract:
This paper analyzes the issues in the digital information construction of experimental teaching demonstration center in colleges and universities, highlighting the significance of education digitalization in the reform and teaching of chemistry experiments. Based on the characteristics of the chemical experimental center in Heilongjiang university, the paper summarizes the digital construction and exploration of the center in three levels: digital information platform, digital teaching resources and digital teaching mode. The center has developed digital teaching resources including chemical experiment safety with clear guidance and three-dimensional structure, virtual simulation with advanced system and comprehensive innovation, and basic chemical experiment with rich content and various forms. The blended teaching modes combining online merge-offline hybrid chemistry experiment safety, theory class, offline experiments, virtual simulations, and MOOCs have been established. The results achieved provide valuable insights for the digital construction of similar university laboratories.
This paper analyzes the issues in the digital information construction of experimental teaching demonstration center in colleges and universities, highlighting the significance of education digitalization in the reform and teaching of chemistry experiments. Based on the characteristics of the chemical experimental center in Heilongjiang university, the paper summarizes the digital construction and exploration of the center in three levels: digital information platform, digital teaching resources and digital teaching mode. The center has developed digital teaching resources including chemical experiment safety with clear guidance and three-dimensional structure, virtual simulation with advanced system and comprehensive innovation, and basic chemical experiment with rich content and various forms. The blended teaching modes combining online merge-offline hybrid chemistry experiment safety, theory class, offline experiments, virtual simulations, and MOOCs have been established. The results achieved provide valuable insights for the digital construction of similar university laboratories.
2024, 39(7): 200-206
doi: 10.12461/PKU.DXHX202405123
Abstract:
Since 2009, Nanjing University has implemented the “Three-stage & Three-Track” undergraduate teaching reform. In line with this concept, the experimental teaching of chemistry has undergone continuous reform to cultivate studentsʼ solid professional practice skills, strong interdisciplinary abilities, and enhanced comprehensive and innovative practical capabilities. Instruments and equipment have played an important supporting role in this reform. To effectively utilize the limited large instruments to meet the needs of various experimental courses, the National Demonstration Center for Experimental Chemistry Education (Nanjing University) has established a high-quality, teaching-oriented public instrument platform, focusing on cultivating “four practical abilities”. However, optimizing the utilization of resources through open sharing of instruments, while balancing teaching tasks, remains an important challenge requiring ongoing exploration. This paper presents the management mechanisms adopted by the platform in experimental teaching, instrument training, sharing and opening, using the public instrument platform of the National Demonstration Center for Experimental Chemistry Education (Nanjing University) as a case study. It highlights the achievements made, providing a reference for similar instrument platforms at other domestic universities.
Since 2009, Nanjing University has implemented the “Three-stage & Three-Track” undergraduate teaching reform. In line with this concept, the experimental teaching of chemistry has undergone continuous reform to cultivate studentsʼ solid professional practice skills, strong interdisciplinary abilities, and enhanced comprehensive and innovative practical capabilities. Instruments and equipment have played an important supporting role in this reform. To effectively utilize the limited large instruments to meet the needs of various experimental courses, the National Demonstration Center for Experimental Chemistry Education (Nanjing University) has established a high-quality, teaching-oriented public instrument platform, focusing on cultivating “four practical abilities”. However, optimizing the utilization of resources through open sharing of instruments, while balancing teaching tasks, remains an important challenge requiring ongoing exploration. This paper presents the management mechanisms adopted by the platform in experimental teaching, instrument training, sharing and opening, using the public instrument platform of the National Demonstration Center for Experimental Chemistry Education (Nanjing University) as a case study. It highlights the achievements made, providing a reference for similar instrument platforms at other domestic universities.
2024, 39(7): 207-210
doi: 10.12461/PKU.DXHX202405134
Abstract:
This paper explores the reform directions and practical measures implemented by the Chemistry Experiment Teaching Demonstration Center at Shanxi University within the framework of first-class major construction. The center focuses on the coordinated development of students’ “knowledge, abilities, and qualities”, adhering to the “Three-Holistic-Education”, and with the characteristic development direction of “leveraging chemistry strengths and serving Shanxi's coal-based industry”, has taken innovative experiments, virtual simulation experiments, and curriculum group construction as the main approaches, implementing a series of reform measures and achieving remarkable results.
This paper explores the reform directions and practical measures implemented by the Chemistry Experiment Teaching Demonstration Center at Shanxi University within the framework of first-class major construction. The center focuses on the coordinated development of students’ “knowledge, abilities, and qualities”, adhering to the “Three-Holistic-Education”, and with the characteristic development direction of “leveraging chemistry strengths and serving Shanxi's coal-based industry”, has taken innovative experiments, virtual simulation experiments, and curriculum group construction as the main approaches, implementing a series of reform measures and achieving remarkable results.
2024, 39(7): 211-217
doi: 10.12461/PKU.DXHX202405139
Abstract:
The Chemical Experiment Teaching Center serves as a vital hub not only for students of chemistry and related majors to engage in practical operations and enhance their experimental skills, but also a crucial foundation for nurturing their innovative thinking and scientific research capabilities. Guided by the principles of “scientific planning, resource sharing, highlighting the key points, improving efficiency and sustainable development”, the Chemical Experiment Teaching Center of Henan Normal University focuses on capacity building, integrating scientific research and teaching resources of the whole college into the experimental teaching organically, and pays attention to cultivating excellent talents with profound knowledge, strong ability of practice and innovation. This article briefly introduces the general situation of the Chemical Experiment Teaching Center in Henan Normal University, summarizes and shares some measures and achievements in the building of the National Experimental Teaching Demonstration Center in our university. Furthermore, it provides a prospect on the future construction and development of the Chemical Experiment Teaching Center.
The Chemical Experiment Teaching Center serves as a vital hub not only for students of chemistry and related majors to engage in practical operations and enhance their experimental skills, but also a crucial foundation for nurturing their innovative thinking and scientific research capabilities. Guided by the principles of “scientific planning, resource sharing, highlighting the key points, improving efficiency and sustainable development”, the Chemical Experiment Teaching Center of Henan Normal University focuses on capacity building, integrating scientific research and teaching resources of the whole college into the experimental teaching organically, and pays attention to cultivating excellent talents with profound knowledge, strong ability of practice and innovation. This article briefly introduces the general situation of the Chemical Experiment Teaching Center in Henan Normal University, summarizes and shares some measures and achievements in the building of the National Experimental Teaching Demonstration Center in our university. Furthermore, it provides a prospect on the future construction and development of the Chemical Experiment Teaching Center.
2024, 39(7): 218-222
doi: 10.12461/PKU.DXHX202406001
Abstract:
The National Experimental Teaching Demonstration Center for Chemistry at the Dalian University of Technology adheres to the educational purpose of “emphasizing foundation, cultivating abilities, and shaping personality”, and the educational philosophy of student-centered development. It fully plays the main battlefield role of talent cultivation and has conducted in-depth exploration and research in the construction of experimental teaching system, teaching resource construction, laboratory management, and teacher team construction. After 5 years of construction practice, a “four in one” experimental teaching system and an “integrated” new paradigm of safety education have been constructed, and a “series, digital, and multimodal” experimental teaching resource has been created. A first-class laboratory environment and institutional guarantee have been established, and a “teacher led” experimental teaching team has been formed. This has promoted the improvement of students' abilities in independent exploration, innovative practice, and emergency response.
The National Experimental Teaching Demonstration Center for Chemistry at the Dalian University of Technology adheres to the educational purpose of “emphasizing foundation, cultivating abilities, and shaping personality”, and the educational philosophy of student-centered development. It fully plays the main battlefield role of talent cultivation and has conducted in-depth exploration and research in the construction of experimental teaching system, teaching resource construction, laboratory management, and teacher team construction. After 5 years of construction practice, a “four in one” experimental teaching system and an “integrated” new paradigm of safety education have been constructed, and a “series, digital, and multimodal” experimental teaching resource has been created. A first-class laboratory environment and institutional guarantee have been established, and a “teacher led” experimental teaching team has been formed. This has promoted the improvement of students' abilities in independent exploration, innovative practice, and emergency response.
2024, 39(7): 223-229
doi: 10.12461/PKU.DXHX202406054
Abstract:
The National Experimental Teaching Demonstration Center for Chemistry at Sun Yat-sen University has been steadily and solidly promoting the high-quality, intrinsic development by rooting on moral education and talent cultivation, focusing on faculty development, emphasizing reform of experimental teaching, taking the laboratory construction as the foundation, and the innovation in management systems and operational mechanisms as the driving forces. This paper presents the construction process and achievements of the center, covering aspects such as construction situation, management systems, resource integration, faculty development, experimental teaching systems, and talent cultivation.
The National Experimental Teaching Demonstration Center for Chemistry at Sun Yat-sen University has been steadily and solidly promoting the high-quality, intrinsic development by rooting on moral education and talent cultivation, focusing on faculty development, emphasizing reform of experimental teaching, taking the laboratory construction as the foundation, and the innovation in management systems and operational mechanisms as the driving forces. This paper presents the construction process and achievements of the center, covering aspects such as construction situation, management systems, resource integration, faculty development, experimental teaching systems, and talent cultivation.
2024, 39(7): 230-236
doi: 10.12461/PKU.DXHX202406094
Abstract:
Based on the practical nature of chemistry and chemical engineering experimental teaching activities, this paper focuses on the design of innovative experimental courses and the construction of a training system for cultivating top-notch innovative talents. The concept and strategy of practical innovative talent training are integrated throughout the entire talent cultivation process, aiming to further promote the integration of science and technology, education, talent cultivation through the effective transformation of high-quality scientific research outcomes into teaching resources.
Based on the practical nature of chemistry and chemical engineering experimental teaching activities, this paper focuses on the design of innovative experimental courses and the construction of a training system for cultivating top-notch innovative talents. The concept and strategy of practical innovative talent training are integrated throughout the entire talent cultivation process, aiming to further promote the integration of science and technology, education, talent cultivation through the effective transformation of high-quality scientific research outcomes into teaching resources.
2024, 39(7): 237-246
doi: 10.12461/PKU.DXHX202406096
Abstract:
Aiming to cultivate top-notch innovative talents, national demonstration center for experimental chemistry education (Xiamen University) deepens the reform of experimental teaching and has newly constructed a new system of “Central Science” experimental courses that integrate multiple disciplines. On the other hand, the center explores new models for its construction and management to provide a platform for cultivating undergraduates’ innovative practical abilities. For example, the center shares high-quality resources and builds a multi-disciplinary teaching team to create an educational environment that fosters scientific and educational collaboration. These series of innovative practices have been implemented to promote the center’s high-quality development, comprehensively improving the quality of talent cultivation, and providing significant support for the university’s “double first-class” construction.
Aiming to cultivate top-notch innovative talents, national demonstration center for experimental chemistry education (Xiamen University) deepens the reform of experimental teaching and has newly constructed a new system of “Central Science” experimental courses that integrate multiple disciplines. On the other hand, the center explores new models for its construction and management to provide a platform for cultivating undergraduates’ innovative practical abilities. For example, the center shares high-quality resources and builds a multi-disciplinary teaching team to create an educational environment that fosters scientific and educational collaboration. These series of innovative practices have been implemented to promote the center’s high-quality development, comprehensively improving the quality of talent cultivation, and providing significant support for the university’s “double first-class” construction.
2024, 39(7): 247-263
doi: 10.3866/PKU.DXHX202310103
Abstract:
In the evolving landscape of modern education, fostering the knowledge application, scientific research abilities and innovative thinking of undergraduates has emerged as a primary goal in the teaching of Inorganic Chemistry. A majority of the content in the chapter on “Alkali and Alkaline Earth Metals” of Inorganic Chemistry II has already been covered by students in high school. This prior exposure has led to a repetitive and monotonous classroom teaching experience, primarily focused on rote learning. To address this issue, the curriculum has been reconstructed and expanded, integrating developments in the disciplinary development and scientific frontier. The incorporation of alkali and alkaline earth metal complexes serves not only to reinforce and deepen the understanding of coordination chemistry from the earlier chapters, but also to extend into important current research areas in inorganic chemistry. An exploratory teaching method has been adopted, employing a blend of online and offline resources, course-based ideological and political education, scientific research progress, software applications, and experimental practice. This approach revitalizes the teaching of alkali and alkali earth metals, making it engaging and profound. It fosters teacher-student collaboration and interaction, enhancing student engagement, encouraging thoughtful inquiry, and strengthening their independent learning, knowledge application, innovative thinking, and scientific research skills.
In the evolving landscape of modern education, fostering the knowledge application, scientific research abilities and innovative thinking of undergraduates has emerged as a primary goal in the teaching of Inorganic Chemistry. A majority of the content in the chapter on “Alkali and Alkaline Earth Metals” of Inorganic Chemistry II has already been covered by students in high school. This prior exposure has led to a repetitive and monotonous classroom teaching experience, primarily focused on rote learning. To address this issue, the curriculum has been reconstructed and expanded, integrating developments in the disciplinary development and scientific frontier. The incorporation of alkali and alkaline earth metal complexes serves not only to reinforce and deepen the understanding of coordination chemistry from the earlier chapters, but also to extend into important current research areas in inorganic chemistry. An exploratory teaching method has been adopted, employing a blend of online and offline resources, course-based ideological and political education, scientific research progress, software applications, and experimental practice. This approach revitalizes the teaching of alkali and alkali earth metals, making it engaging and profound. It fosters teacher-student collaboration and interaction, enhancing student engagement, encouraging thoughtful inquiry, and strengthening their independent learning, knowledge application, innovative thinking, and scientific research skills.
2024, 39(7): 264-271
doi: 10.3866/PKU.DXHX202311009
Abstract:
The construction of laboratory safety is essential for ensuring the efficient and orderly operation of a laboratory. Students’ safety literacy, who are the primary operators in basic teaching laboratories, directly impacts the safety status of these labs. This study proposes a comprehensive experimental teaching model that integrates laboratory managers, teachers, and students, emphasizing safety literacy development in the entire teaching process. This model has been specifically applied in the teaching of analytical chemistry experiments. It facilitates enhanced communication among laboratory managers, teachers, and students. By employing the COOP and 7S experimental teaching schemes, the model immersively engages students in maintaining and developing the experimental environment, which deeply rooting the concept of safety in their learning experience. The effectiveness of this model is evaluated using Partial Eta Squared (η2) test and multivariate Logistic regression analysis, highlighting the significant influence of procedural standardization and organizational orderliness in the experimental process on student’s safety literacy. The practice confirms that this model is instrumental in fostering good experimental habits and safety awareness among students, increasing their sense of responsibility and fulfillment in the laboratory. It achieves enhanced management quality, synergistic growth in teaching and learning, and the inculcation of safety as a core value. Consequently, laboratory personnel can maintain constant control over safety, significantly elevating the operational safety level of the laboratories.
The construction of laboratory safety is essential for ensuring the efficient and orderly operation of a laboratory. Students’ safety literacy, who are the primary operators in basic teaching laboratories, directly impacts the safety status of these labs. This study proposes a comprehensive experimental teaching model that integrates laboratory managers, teachers, and students, emphasizing safety literacy development in the entire teaching process. This model has been specifically applied in the teaching of analytical chemistry experiments. It facilitates enhanced communication among laboratory managers, teachers, and students. By employing the COOP and 7S experimental teaching schemes, the model immersively engages students in maintaining and developing the experimental environment, which deeply rooting the concept of safety in their learning experience. The effectiveness of this model is evaluated using Partial Eta Squared (η2) test and multivariate Logistic regression analysis, highlighting the significant influence of procedural standardization and organizational orderliness in the experimental process on student’s safety literacy. The practice confirms that this model is instrumental in fostering good experimental habits and safety awareness among students, increasing their sense of responsibility and fulfillment in the laboratory. It achieves enhanced management quality, synergistic growth in teaching and learning, and the inculcation of safety as a core value. Consequently, laboratory personnel can maintain constant control over safety, significantly elevating the operational safety level of the laboratories.
2024, 39(7): 272-277
doi: 10.3866/PKU.DXHX202311032
Abstract:
Quantum chemistry, as a degree course tailored for graduate students specializing in physical chemistry, encompasses rich ideological and political elements within its teaching contents. This article focuses on the theory of connection in dialectical materialism, and employs typical teaching case to illuminate the universality, objectivity, and diversity of connections. The objective is to guide students in developing a correct worldview and methodology rooted in dialectical materialism, enabling them to analyze and solve problems from the perspective of interconnectedness, and ultimately enhancing their scientific literacy and comprehensive quality.
Quantum chemistry, as a degree course tailored for graduate students specializing in physical chemistry, encompasses rich ideological and political elements within its teaching contents. This article focuses on the theory of connection in dialectical materialism, and employs typical teaching case to illuminate the universality, objectivity, and diversity of connections. The objective is to guide students in developing a correct worldview and methodology rooted in dialectical materialism, enabling them to analyze and solve problems from the perspective of interconnectedness, and ultimately enhancing their scientific literacy and comprehensive quality.
2024, 39(7): 278-286
doi: 10.3866/PKU.DXHX202311039
Abstract:
Organoid-on-a-chip technology emerges as a groundbreaking interdisciplinary innovation of the 21st century, cultivating human cells in three-dimensions ex vivo to form organoids. These organoids replicate human physiological and pathological conditions as well as functions akin to human organs. Integratable with electronic chips, this technology finds extensive applications in drug screening, safety evaluation, personalized medicine, in vitro diagnosis. As a recent avant-grade technological advancement, organoid-on-a-chip demonstrates several benefits over traditional cell-based animal testing methods used for drug screening, such as lower costs, better animal welfare, higher precision, and wider applicability. This positions it at the forefront of future drug screening and safety evaluation methodologies. The use of organoid chips in drug screening encapsulates a plethora of inherent biochemical principles. Incorporating organoid-on-chip related knowledge into university curricula plays a significant role in enabling medical and pharmaceutical students to stay abreast of the forefront in drug development and to grasp biochemical concepts in a more systematic manner. Therefore, this paper begins with the concept of organoid chips, exploring their design, principles, and applications in drug screening, while anticipating their future developments. Simultaneously, it focuses on the multidisciplinary interdisciplinary characteristics of organoid chips in fields, such as cell biology, medicinal chemistry, biochemistry, and electronic information science, analyzing the inherent biochemical principles. In line with this, the paper proposes an 8 lecture-course design for the Biochemistry curriculum, aiming to meet the evolving educational demands for nurturing innovative talents in the pharmaceutical sector.
Organoid-on-a-chip technology emerges as a groundbreaking interdisciplinary innovation of the 21st century, cultivating human cells in three-dimensions ex vivo to form organoids. These organoids replicate human physiological and pathological conditions as well as functions akin to human organs. Integratable with electronic chips, this technology finds extensive applications in drug screening, safety evaluation, personalized medicine, in vitro diagnosis. As a recent avant-grade technological advancement, organoid-on-a-chip demonstrates several benefits over traditional cell-based animal testing methods used for drug screening, such as lower costs, better animal welfare, higher precision, and wider applicability. This positions it at the forefront of future drug screening and safety evaluation methodologies. The use of organoid chips in drug screening encapsulates a plethora of inherent biochemical principles. Incorporating organoid-on-chip related knowledge into university curricula plays a significant role in enabling medical and pharmaceutical students to stay abreast of the forefront in drug development and to grasp biochemical concepts in a more systematic manner. Therefore, this paper begins with the concept of organoid chips, exploring their design, principles, and applications in drug screening, while anticipating their future developments. Simultaneously, it focuses on the multidisciplinary interdisciplinary characteristics of organoid chips in fields, such as cell biology, medicinal chemistry, biochemistry, and electronic information science, analyzing the inherent biochemical principles. In line with this, the paper proposes an 8 lecture-course design for the Biochemistry curriculum, aiming to meet the evolving educational demands for nurturing innovative talents in the pharmaceutical sector.
2024, 39(7): 287-293
doi: 10.3866/PKU.DXHX202310133
Abstract:
Nitrogenase is a catalyst used by nitrogen-fixing microorganisms to convert atmospheric nitrogen into ammonia at ambient temperature and pressure. The structure of the active site in molybdenum nitrogenase has evolved from Fe2S2∙Mo2O2 to MoFe7S9C(R-Hhomocit)(cys)(his) (H4homocit = homocitric acid, Hcys = cysteine, Hhis = histidine) through advancements in chemical modeling, spectroscopy, and theoretical calculations, especially for structural biology. This paper provides a comprehensive review of the important achievements in the study of the active site of nitrogenase from a chemical structure perspective over the past fifty years.
Nitrogenase is a catalyst used by nitrogen-fixing microorganisms to convert atmospheric nitrogen into ammonia at ambient temperature and pressure. The structure of the active site in molybdenum nitrogenase has evolved from Fe2S2∙Mo2O2 to MoFe7S9C(R-Hhomocit)(cys)(his) (H4homocit = homocitric acid, Hcys = cysteine, Hhis = histidine) through advancements in chemical modeling, spectroscopy, and theoretical calculations, especially for structural biology. This paper provides a comprehensive review of the important achievements in the study of the active site of nitrogenase from a chemical structure perspective over the past fifty years.
2024, 39(7): 294-298
doi: 10.12461/PKU.DXHX202311041
Abstract:
This article recounts the experiences of an ordinary college student during a National Day trip to Wuhan, where unexpected encounters with Huawei Mate 60, food packaging bags, and medical equipment unfold. Through a vivid and lively narrative, the article introduces readers to cyclic olefin copolymer (COC) materials and their typical applications in optical devices, plastic packaging, and the biomedical field.
This article recounts the experiences of an ordinary college student during a National Day trip to Wuhan, where unexpected encounters with Huawei Mate 60, food packaging bags, and medical equipment unfold. Through a vivid and lively narrative, the article introduces readers to cyclic olefin copolymer (COC) materials and their typical applications in optical devices, plastic packaging, and the biomedical field.
2024, 39(7): 299-306
doi: 10.3866/PKU.DXHX202310105
Abstract:
At present, the undergraduate chemistry experimental teaching predominantly focuses on mononuclear complexes in the field of complex preparation experiments, often overlooking the significantly important polynuclear complexes within the complex family. Addressing this gap, we have designed a comprehensive chemical experiment involving a trinuclear iron(III) complex, drawing from scientific research findings to enrich students’ comprehension and application of complex chemistry. This design involved the preparation of an oxygen-bridged trinuclear iron(III) complex, [Fe3O(CH3COO)6(H2O)3]NO3·4H2O, utilizing cost-effective and readily available iron(III) nitrate nonahydrate and sodium acetate trihydrate as raw materials through water bath heating, cooling crystallization, and other steps. The iron content in the complex was determined by complexometric titration, and characterized by infrared spectroscopy, thermogravimetric analysis, powder X-ray diffraction, and electron paramagnetic resonance. The experimental is notable for its simplicity, efficiency, and eco-friendly approach. It incorporates ideological and political elements, and showcases the complex’s novel and symmetrically aesthetic structure. During experimental teaching, students can also cultivate their appreciation of the intrinsic beauty of chemistry. The integration of science and education in this design helps to foster students’ ability to analyze and solve problems, providing a feasible case for comprehensive chemistry experimental teaching for undergraduate students.
At present, the undergraduate chemistry experimental teaching predominantly focuses on mononuclear complexes in the field of complex preparation experiments, often overlooking the significantly important polynuclear complexes within the complex family. Addressing this gap, we have designed a comprehensive chemical experiment involving a trinuclear iron(III) complex, drawing from scientific research findings to enrich students’ comprehension and application of complex chemistry. This design involved the preparation of an oxygen-bridged trinuclear iron(III) complex, [Fe3O(CH3COO)6(H2O)3]NO3·4H2O, utilizing cost-effective and readily available iron(III) nitrate nonahydrate and sodium acetate trihydrate as raw materials through water bath heating, cooling crystallization, and other steps. The iron content in the complex was determined by complexometric titration, and characterized by infrared spectroscopy, thermogravimetric analysis, powder X-ray diffraction, and electron paramagnetic resonance. The experimental is notable for its simplicity, efficiency, and eco-friendly approach. It incorporates ideological and political elements, and showcases the complex’s novel and symmetrically aesthetic structure. During experimental teaching, students can also cultivate their appreciation of the intrinsic beauty of chemistry. The integration of science and education in this design helps to foster students’ ability to analyze and solve problems, providing a feasible case for comprehensive chemistry experimental teaching for undergraduate students.
2024, 39(7): 307-315
doi: 10.3866/PKU.DXHX202311031
Abstract:
Semiconductor quantum dots, composed of elements from groups II–VI (CdSe, CdTe, CdS, ZnTe, ZnO), III–V (InAs, GaSb, InP) and IV (Si, Ge), are nanoscale particles attracting significant research interest. The focus of current studies lies predominantly on II–VI group quantum dots like CdS, CdSe, and CdTe, known for their narrow band gaps and exceptional fluorescent properties intrinsically related to quantum size effects. In this study, a straightforward aqueous reflux method was employed, using thioglycolic acid as a stabilizer, and NaHTe as a Te precursor. Over a period of 3 h, CdTe semiconductor quantum dots of various colors were prepared, addressing and mitigating the issue of oxidation susceptibility during NaHTe transfer. The fluorescence luminescence properties of the product were meticulously analyzed, yielding a series of CdTe quantum dots with an impressive quantum efficiency of 48%. This experimental approach is notable for its simplicity, minimal reagent consumption, and distinct fluorescence characteristics, making it highly operable and replicable. It is well-suited for undergraduate education in inorganic chemistry, instrumental analysis, and comprehensive professional experiments.
Semiconductor quantum dots, composed of elements from groups II–VI (CdSe, CdTe, CdS, ZnTe, ZnO), III–V (InAs, GaSb, InP) and IV (Si, Ge), are nanoscale particles attracting significant research interest. The focus of current studies lies predominantly on II–VI group quantum dots like CdS, CdSe, and CdTe, known for their narrow band gaps and exceptional fluorescent properties intrinsically related to quantum size effects. In this study, a straightforward aqueous reflux method was employed, using thioglycolic acid as a stabilizer, and NaHTe as a Te precursor. Over a period of 3 h, CdTe semiconductor quantum dots of various colors were prepared, addressing and mitigating the issue of oxidation susceptibility during NaHTe transfer. The fluorescence luminescence properties of the product were meticulously analyzed, yielding a series of CdTe quantum dots with an impressive quantum efficiency of 48%. This experimental approach is notable for its simplicity, minimal reagent consumption, and distinct fluorescence characteristics, making it highly operable and replicable. It is well-suited for undergraduate education in inorganic chemistry, instrumental analysis, and comprehensive professional experiments.
2024, 39(7): 316-321
doi: 10.3866/PKU.DXHX202311035
Abstract:
Nanoscale zinc oxide is a multifunctional nanomaterial extensively utilized across various domains due to its exceptional physicochemical properties. Traditional synthesis methods often face challenges such as high costs, complex procedures, and product instability. The microemulsion synthesis overcomes these issues, offering simplicity, cost-effectiveness, and controllable produce dimensions. Notably, the use of waste soybean oil as an emulsifier in the synthesis process aligns with the principles of green chemistry and sustainable development, highlighting waste material reuse. The nanoscale zinc oxide products were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and chemical analysis. This approach fosters a comprehensive integration of inorganic synthesis, chemical and instrument analysis, aiming to enhance the holistic experimental capabilities of university students.
Nanoscale zinc oxide is a multifunctional nanomaterial extensively utilized across various domains due to its exceptional physicochemical properties. Traditional synthesis methods often face challenges such as high costs, complex procedures, and product instability. The microemulsion synthesis overcomes these issues, offering simplicity, cost-effectiveness, and controllable produce dimensions. Notably, the use of waste soybean oil as an emulsifier in the synthesis process aligns with the principles of green chemistry and sustainable development, highlighting waste material reuse. The nanoscale zinc oxide products were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and chemical analysis. This approach fosters a comprehensive integration of inorganic synthesis, chemical and instrument analysis, aiming to enhance the holistic experimental capabilities of university students.
2024, 39(7): 322-329
doi: 10.3866/PKU.DXHX202310131
Abstract:
This paper presents a research-oriented comprehensive chemical experiment on the synthesis, copper content analysis, and luminescence performance study of binuclear copper (I) complexes with isomeric luminescence shift. In this experiment, Cu (I) complexes were synthesized through redox and coordination reactions. Thin-layer chromatography was used to determine the reaction endpoint. The copper content in the complexes was then measured by coordination titration method. Finally, the fluorescence spectroscopy and fluorescence quantitative analysis were employed to evaluate the solid-state fluorescence and the purity of the product. This experiment integrates foundational knowledge and experimental skills from inorganic chemistry, organic chemistry and analytical chemistry, as well as the learning and operation of sophisticated instruments. It also reflects the current research hotspot of luminescent metal complexes and explores the relationship between material structure and properties. By participating in this experiment, students not only reinforce their learned experimental knowledge and skills, but also develop their comprehensive ability to apply the knowledge to solve practical problems, fostering an initial scientific mindset and research ability.
This paper presents a research-oriented comprehensive chemical experiment on the synthesis, copper content analysis, and luminescence performance study of binuclear copper (I) complexes with isomeric luminescence shift. In this experiment, Cu (I) complexes were synthesized through redox and coordination reactions. Thin-layer chromatography was used to determine the reaction endpoint. The copper content in the complexes was then measured by coordination titration method. Finally, the fluorescence spectroscopy and fluorescence quantitative analysis were employed to evaluate the solid-state fluorescence and the purity of the product. This experiment integrates foundational knowledge and experimental skills from inorganic chemistry, organic chemistry and analytical chemistry, as well as the learning and operation of sophisticated instruments. It also reflects the current research hotspot of luminescent metal complexes and explores the relationship between material structure and properties. By participating in this experiment, students not only reinforce their learned experimental knowledge and skills, but also develop their comprehensive ability to apply the knowledge to solve practical problems, fostering an initial scientific mindset and research ability.
2024, 39(7): 330-336
doi: 10.3866/PKU.DXHX202310109
Abstract:
This article delves into the context and pedagogical significance of experimental teaching within the chemical safety and environmental protection course. It illustrates the effective implementation of “Three Realities and One Innovation” teaching model by the course team at Wuhan Institute of Technology. Focusing on the "Comprehensive Teaching Experiment on Electrochemical Corrosion in Galvanic Cell", this article evaluates the application and impact of this experimental teaching approach, summarizes the educational outcomes, and envisions prospects for potential experimental teaching applications in the field of chemical safety and environmental protection, offering both theoretical and empirical support for the pedagogical practice in this field.
This article delves into the context and pedagogical significance of experimental teaching within the chemical safety and environmental protection course. It illustrates the effective implementation of “Three Realities and One Innovation” teaching model by the course team at Wuhan Institute of Technology. Focusing on the "Comprehensive Teaching Experiment on Electrochemical Corrosion in Galvanic Cell", this article evaluates the application and impact of this experimental teaching approach, summarizes the educational outcomes, and envisions prospects for potential experimental teaching applications in the field of chemical safety and environmental protection, offering both theoretical and empirical support for the pedagogical practice in this field.
2024, 39(7): 337-344
doi: 10.3866/PKU.DXHX202310107
Abstract:
Flexible perovskite device is the research hotspot of the flexible optoelectronic technology in the future. By employing 3D printing photopolymer technology, compatible manufacturing of flexible perovskite photoluminescent devices can be achieved. This research content is a forefront of interdisciplinary fields, covering professional knowledge in materials, polymers, chemistry, semiconductor physics, flexible electronics, and other related fields. In order to cultivate the innovative consciousness and scientific research thinking of undergraduates, and consolidate their professional theoretical knowledge and practical ability, we design an innovative experiment of fabricating flexible perovskite photoluminescent gels by 3D printing. The experiment involves 3D printing molding, post-processing of perovskite crystallization, characterization and analysis of experimental results, which allow students to personally participate in practice. While completing the whole process of preparing perovskite flexible devices independently, students can cultivate their scientific research interest and comprehensive ability to analyze and solve problems, so as to achieve the goal of innovative teaching experiments.
Flexible perovskite device is the research hotspot of the flexible optoelectronic technology in the future. By employing 3D printing photopolymer technology, compatible manufacturing of flexible perovskite photoluminescent devices can be achieved. This research content is a forefront of interdisciplinary fields, covering professional knowledge in materials, polymers, chemistry, semiconductor physics, flexible electronics, and other related fields. In order to cultivate the innovative consciousness and scientific research thinking of undergraduates, and consolidate their professional theoretical knowledge and practical ability, we design an innovative experiment of fabricating flexible perovskite photoluminescent gels by 3D printing. The experiment involves 3D printing molding, post-processing of perovskite crystallization, characterization and analysis of experimental results, which allow students to personally participate in practice. While completing the whole process of preparing perovskite flexible devices independently, students can cultivate their scientific research interest and comprehensive ability to analyze and solve problems, so as to achieve the goal of innovative teaching experiments.
2024, 39(7): 345-353
doi: 10.3866/PKU.DXHX202310096
Abstract:
This paper presents a comprehensive chemistry experiment that translates a research result into undergraduate laboratory teaching. The experiment focuses on the synthesis of a highly sensitive electrochemical sensor for tert-butylhydroquinone (TBHQ) using ZIF-67 metal-organic framework (MOF) materials as a foundation. ZIF-67 MOF material was synthesized in solution at room temperature, followed by the preparation of Co nanoparticles and nitrogen-doped carbon nanotubes (Co/NCNTs) composite material through reduction atmosphere pyrolysis. The glass-carbon electrode was then modified with this material to investigate its detection capability for TBHQ, a common antioxidant component in edible oil. The morphology, structure, and elemental composition of the prepared materials were characterized using Scanning Electron Microscope (SEM), X-ray diffraction (XRD), Transmission Electron Microscope (TEM) and Energy Dispersive X-Ray Spectrometer (EDX). This experiment offers readily available reagents, simple operation, and a high success rate, providing students with comprehensive training in scientific research procedures, familiarity with the concept of metal-organic framework materials, and an understanding of structure-property relationships. It not only enhances students’ comprehensive laboratory skills but also cultivates their interest in scientific research and expands their perspectives.
This paper presents a comprehensive chemistry experiment that translates a research result into undergraduate laboratory teaching. The experiment focuses on the synthesis of a highly sensitive electrochemical sensor for tert-butylhydroquinone (TBHQ) using ZIF-67 metal-organic framework (MOF) materials as a foundation. ZIF-67 MOF material was synthesized in solution at room temperature, followed by the preparation of Co nanoparticles and nitrogen-doped carbon nanotubes (Co/NCNTs) composite material through reduction atmosphere pyrolysis. The glass-carbon electrode was then modified with this material to investigate its detection capability for TBHQ, a common antioxidant component in edible oil. The morphology, structure, and elemental composition of the prepared materials were characterized using Scanning Electron Microscope (SEM), X-ray diffraction (XRD), Transmission Electron Microscope (TEM) and Energy Dispersive X-Ray Spectrometer (EDX). This experiment offers readily available reagents, simple operation, and a high success rate, providing students with comprehensive training in scientific research procedures, familiarity with the concept of metal-organic framework materials, and an understanding of structure-property relationships. It not only enhances students’ comprehensive laboratory skills but also cultivates their interest in scientific research and expands their perspectives.
2024, 39(7): 354-360
doi: 10.12461/PKU.DXHX202311040
Abstract:
Building upon foundational experiments in redox titration and spectrophotometry, this study outlines the design and execution of an innovative, comprehensive experiment framework for determining permanganate index (CODMn) in drinking water. Central to this approach is a student-focused methodology that enhances practical and inventive skills through comparative analysis of two distinct techniques. This process not only bridges gap between theoretical knowledge and experimental practice, but also integrates teaching with research to underscore the distinctions between conventional and novel methods, verified and innovative experiments, and between simulated and actual samples, showing the high order, innovation and challenge of experimental course. By emphasizing the dual nature and degree of experimental coursework and incorporating ideological and political elements, the experiment fulfills the fundamental mission of moral education. Additionally, the establishment of a procedural evaluation system enables a thorough and systematic assessment of the experimental activities, significantly contributing to the pedagogical process. This innovative experiment offers valuable insights in the reform of experimental teaching within the field of analytical chemistry.
Building upon foundational experiments in redox titration and spectrophotometry, this study outlines the design and execution of an innovative, comprehensive experiment framework for determining permanganate index (CODMn) in drinking water. Central to this approach is a student-focused methodology that enhances practical and inventive skills through comparative analysis of two distinct techniques. This process not only bridges gap between theoretical knowledge and experimental practice, but also integrates teaching with research to underscore the distinctions between conventional and novel methods, verified and innovative experiments, and between simulated and actual samples, showing the high order, innovation and challenge of experimental course. By emphasizing the dual nature and degree of experimental coursework and incorporating ideological and political elements, the experiment fulfills the fundamental mission of moral education. Additionally, the establishment of a procedural evaluation system enables a thorough and systematic assessment of the experimental activities, significantly contributing to the pedagogical process. This innovative experiment offers valuable insights in the reform of experimental teaching within the field of analytical chemistry.
2024, 39(7): 361-367
doi: 10.3866/PKU.DXHX202311029
Abstract:
Herein, the classic organic chemistry experiment titled "Determination of Ethyl Acetoacetate Tautomers by 1H Nuclear Magnetic Resonance" was redesigned to enhance its scope and depth. This new experiment goes beyond simply recognizing the keto-enol tautomeric phenomenon. It delves into the kinetics, the impact of substituents, and the influence of solvents on the keto-enol tautomerization. It's worth noting that the hydrogen-deuterium exchange phenomenon can be observed, providing valuable insights into the ketone-enol tautomeric mechanism. This well-crafted experiment is designed for senior undergraduate students pursuing chemistry-related majors. It not only deepens their comprehension of ketone properties but also fosters expertise in utilizing nuclear magnetic resonance spectroscopy in the field of organic chemistry. This, in turn, solidifies their theoretical knowledge in organic chemistry and instrumental analysis and hones their problem-solving and analytical skills.
Herein, the classic organic chemistry experiment titled "Determination of Ethyl Acetoacetate Tautomers by 1H Nuclear Magnetic Resonance" was redesigned to enhance its scope and depth. This new experiment goes beyond simply recognizing the keto-enol tautomeric phenomenon. It delves into the kinetics, the impact of substituents, and the influence of solvents on the keto-enol tautomerization. It's worth noting that the hydrogen-deuterium exchange phenomenon can be observed, providing valuable insights into the ketone-enol tautomeric mechanism. This well-crafted experiment is designed for senior undergraduate students pursuing chemistry-related majors. It not only deepens their comprehension of ketone properties but also fosters expertise in utilizing nuclear magnetic resonance spectroscopy in the field of organic chemistry. This, in turn, solidifies their theoretical knowledge in organic chemistry and instrumental analysis and hones their problem-solving and analytical skills.
2024, 39(7): 368-376
doi: 10.3866/PKU.DXHX202311027
Abstract:
In the experimental instruction of chemical engineering thermodynamics, we encouraged students to carry out exploratory and practical learning through advanced, thought-provoking exercises. Taking the measurement of the second Virial coefficient of CO2 as an example, we advocated students to think and devise the methods for calculating higher-order Virial coefficients independently, guiding them to analyze and compare problem-solving strategies and methods used by scholars both domestically and internationally. Students are then coached to conduct bidirectional tests to validate the accuracy of their experimental data, the rationality of their constructed methods, as well as the effectiveness of their results. Furthermore, they are led to trace the evolution of data processing methodologies related to Virial coefficient experiments, enabling them to precisely identify and critically assess their own methodologies. By enhancing the design and integrative aspects of our experimental teaching projects, we explore ways to elevate the sophistication of experimental courses, thereby meeting and actualizing the “High Order, Innovative, and Challenging” standards.
In the experimental instruction of chemical engineering thermodynamics, we encouraged students to carry out exploratory and practical learning through advanced, thought-provoking exercises. Taking the measurement of the second Virial coefficient of CO2 as an example, we advocated students to think and devise the methods for calculating higher-order Virial coefficients independently, guiding them to analyze and compare problem-solving strategies and methods used by scholars both domestically and internationally. Students are then coached to conduct bidirectional tests to validate the accuracy of their experimental data, the rationality of their constructed methods, as well as the effectiveness of their results. Furthermore, they are led to trace the evolution of data processing methodologies related to Virial coefficient experiments, enabling them to precisely identify and critically assess their own methodologies. By enhancing the design and integrative aspects of our experimental teaching projects, we explore ways to elevate the sophistication of experimental courses, thereby meeting and actualizing the “High Order, Innovative, and Challenging” standards.
2024, 39(7): 377-380
doi: 10.3866/PKU.DXHX202311037
Abstract:
The Aldol reaction is a key and challenging topic in the foundational organic chemistry course. In our teaching practice, we have found that explaining the principles of the Aldol reaction based on its reversibility and providing mechanism problems can effectively deepen students’ understanding and awareness of the Aldol reaction, thus enhancing the teaching effectiveness. In this article, we share three typical examples of rearrangement reactions based on reversible Aldol reactions, which can serve as references for teachers and students in their teaching and learning endeavors.
The Aldol reaction is a key and challenging topic in the foundational organic chemistry course. In our teaching practice, we have found that explaining the principles of the Aldol reaction based on its reversibility and providing mechanism problems can effectively deepen students’ understanding and awareness of the Aldol reaction, thus enhancing the teaching effectiveness. In this article, we share three typical examples of rearrangement reactions based on reversible Aldol reactions, which can serve as references for teachers and students in their teaching and learning endeavors.
2024, 39(7): 381-385
doi: 10.3866/PKU.DXHX202311023
Abstract:
In order to conduct a more in-depth study of the classic experiment on surface tension, various function models were employed using Origin software to fit the surface tension and concentration curves. The advantages and disadvantages of each function fitting were then discussed. It was found that the logarithm function exhibited high mathematical accuracy and also had a clear physical interpretation, making it more suitable and practical for fitting the surface tension and concentration curves. This finding provides valuable insights for data processing in college experimental teaching.
In order to conduct a more in-depth study of the classic experiment on surface tension, various function models were employed using Origin software to fit the surface tension and concentration curves. The advantages and disadvantages of each function fitting were then discussed. It was found that the logarithm function exhibited high mathematical accuracy and also had a clear physical interpretation, making it more suitable and practical for fitting the surface tension and concentration curves. This finding provides valuable insights for data processing in college experimental teaching.
How to Determine the Equilibrium Bond Distance of Homonuclear Diatomic Molecules: A Case Study of H2
2024, 39(7): 386-393
doi: 10.3866/PKU.DXHX202310102
Abstract:
The equilibrium nuclear distance is of paramount importance in the study of diatomic molecule properties. It can be obtained through spectroscopic experiments and quantum chemical calculations. The hydrogen molecule (H2) serves as the simplest diatomic molecule, making it an ideal example to illustrate the determination of equilibrium bond distance in homonuclear diatomic molecules. This paper introduces various spectroscopic experimental methods for measuring the equilibrium bond distance, including Raman spectroscopy, electric-field induced dipole spectroscopy, and quadrupole transition spectroscopy. Furthermore, the historical development of solving the Schrödinger equation for the hydrogen molecule, with specific emphasis on the equilibrium bond distance and bond dissociation energy, is discussed.
The equilibrium nuclear distance is of paramount importance in the study of diatomic molecule properties. It can be obtained through spectroscopic experiments and quantum chemical calculations. The hydrogen molecule (H2) serves as the simplest diatomic molecule, making it an ideal example to illustrate the determination of equilibrium bond distance in homonuclear diatomic molecules. This paper introduces various spectroscopic experimental methods for measuring the equilibrium bond distance, including Raman spectroscopy, electric-field induced dipole spectroscopy, and quadrupole transition spectroscopy. Furthermore, the historical development of solving the Schrödinger equation for the hydrogen molecule, with specific emphasis on the equilibrium bond distance and bond dissociation energy, is discussed.
2024, 39(7): 394-397
doi: 10.3866/PKU.DXHX202311034
Abstract:
Stereoisomerism is a significant phenomenon in organic chemistry, with crucial implications for research and education. This article examines the stereoisomeric phenomenon of macrocycles containing multiple chiral centers, using Tröger base-based macrocycles as examples and incorporating experimental findings.
Stereoisomerism is a significant phenomenon in organic chemistry, with crucial implications for research and education. This article examines the stereoisomeric phenomenon of macrocycles containing multiple chiral centers, using Tröger base-based macrocycles as examples and incorporating experimental findings.
2024, 39(7): 398-404
doi: 10.3866/PKU.DXHX202310101
Abstract:
The research work of history of catalysis science can trace back to the beginning of Republic of China. The earlier work always affiliated to the history of chemistry, e.g. the chapter of catalysis in History of Chemistry. Thereafter, it can be gradually found in some monographs on catalysis, e.g. The Newest Chemical Engineering Series showing at the beginning of these books. After the foundation of the People’s Republic of China, the research work of catalysis starts to be independent, e.g. the pioneer work of Zhang Dayu, Guo Xiexian, etc. Besides, it also found in the books of chemical history, of catalysis science and of catalysis used as key technique. Recently, the monographs of history of catalysis science have been published, e.g. Documents of History of Catalysis (Cuihua Shiliao), Scientist of Catalysis in China., all edited by Xin Qin, etc.
The research work of history of catalysis science can trace back to the beginning of Republic of China. The earlier work always affiliated to the history of chemistry, e.g. the chapter of catalysis in History of Chemistry. Thereafter, it can be gradually found in some monographs on catalysis, e.g. The Newest Chemical Engineering Series showing at the beginning of these books. After the foundation of the People’s Republic of China, the research work of catalysis starts to be independent, e.g. the pioneer work of Zhang Dayu, Guo Xiexian, etc. Besides, it also found in the books of chemical history, of catalysis science and of catalysis used as key technique. Recently, the monographs of history of catalysis science have been published, e.g. Documents of History of Catalysis (Cuihua Shiliao), Scientist of Catalysis in China., all edited by Xin Qin, etc.
