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2023 Volume 42 Issue 4
2023, 42(4): 100002
doi: 10.1016/j.cjsc.2023.100002
Abstract:
In this work, a highly symmetric 1,2-difluoro-4,5-dinitrobenzene was synthesized in one step by regulating the ratio of non-covalent interaction by fluorine atoms to regulate the melting point and fully characterized. It is a promising insensitive melt-castable energetic material
In this work, a highly symmetric 1,2-difluoro-4,5-dinitrobenzene was synthesized in one step by regulating the ratio of non-covalent interaction by fluorine atoms to regulate the melting point and fully characterized. It is a promising insensitive melt-castable energetic material
2023, 42(4): 100005
doi: 10.1016/j.cjsc.2023.100005
Abstract:
In this work, two new metal-organic frameworks (MOFs) based on a pyrazole-imidazole heterotopic ligand, namely, SCNU-Z8(Co) and SCNU-Z8(Ni), are constructed. They are isostructural, and the crystal structure of SCNU-Z8(Co) is further analyzed by single-crystal X-ray diffraction. They are 3D cationic frameworks with 1D tubular channels and possess a highly (3,9)-connected binodal gfy network topology. SCNU-Z8(Ni) can be synthesized in high yield with high phase purity; thus, it is selected to be further explored. A stability study shows that its framework is stable in water at different pH values and in many organic solvents. It can be applied to capture Cr2O72– anions in water with a moderate adsorption capacity of 130 mg/g via anion-exchanged process. Iodine molecules in vapour phase and cyclohexane solution can also be captured by SCNU-Z8(Ni). In the case of iodine vapours and iodine cyclohexane solution, the adsorption capacity reaches up to 4.1g/g and 640 mg/g, respectively, which are among the best in MOFs. Most of the absorbed iodine molecules are stably captured in the framework and hard to release, which may be conducive to allow the permanent storage of radioactive iodine.
In this work, two new metal-organic frameworks (MOFs) based on a pyrazole-imidazole heterotopic ligand, namely, SCNU-Z8(Co) and SCNU-Z8(Ni), are constructed. They are isostructural, and the crystal structure of SCNU-Z8(Co) is further analyzed by single-crystal X-ray diffraction. They are 3D cationic frameworks with 1D tubular channels and possess a highly (3,9)-connected binodal gfy network topology. SCNU-Z8(Ni) can be synthesized in high yield with high phase purity; thus, it is selected to be further explored. A stability study shows that its framework is stable in water at different pH values and in many organic solvents. It can be applied to capture Cr2O72– anions in water with a moderate adsorption capacity of 130 mg/g via anion-exchanged process. Iodine molecules in vapour phase and cyclohexane solution can also be captured by SCNU-Z8(Ni). In the case of iodine vapours and iodine cyclohexane solution, the adsorption capacity reaches up to 4.1g/g and 640 mg/g, respectively, which are among the best in MOFs. Most of the absorbed iodine molecules are stably captured in the framework and hard to release, which may be conducive to allow the permanent storage of radioactive iodine.
2023, 42(4): 100006
doi: 10.1016/j.cjsc.2023.100006
Abstract:
In this review, methods and strategies for the preparation of highly thermally conductive porous carbon-based materials and the factors that influence their thermal conductivity of the materials are summarized. The thermal performance of porous carbonaceous materials fabricated by different approaches and their applications are also discussed. Finally, the potential challenges and strategies for the development and applications of highly thermally conductive porous carbonaceous materials are discussed.
In this review, methods and strategies for the preparation of highly thermally conductive porous carbon-based materials and the factors that influence their thermal conductivity of the materials are summarized. The thermal performance of porous carbonaceous materials fabricated by different approaches and their applications are also discussed. Finally, the potential challenges and strategies for the development and applications of highly thermally conductive porous carbonaceous materials are discussed.
2023, 42(4): 100007
doi: 10.1016/j.cjsc.2023.100007
Abstract:
2023, 42(4): 100008
doi: 10.1016/j.cjsc.2023.100008
Abstract:
2023, 42(4): 100010
doi: 10.1016/j.cjsc.2023.100010
Abstract:
A direct Z-scheme Bi2WO6/La2Ti2O7 photocatalyst is successfully synthesized by electrostatic self-assembly method. The selectivity of CO2 reduction to CO is improved from 74% of La2Ti2O7 to nearly 100%, and the CO yield is 7.5 times that of individual La2Ti2O7. This work provides a new insight for the construction of efficient photocatalyst for selective reduction of CO2 to CO.
A direct Z-scheme Bi2WO6/La2Ti2O7 photocatalyst is successfully synthesized by electrostatic self-assembly method. The selectivity of CO2 reduction to CO is improved from 74% of La2Ti2O7 to nearly 100%, and the CO yield is 7.5 times that of individual La2Ti2O7. This work provides a new insight for the construction of efficient photocatalyst for selective reduction of CO2 to CO.
2023, 42(4): 100035
doi: 10.1016/j.cjsc.2023.100035
Abstract:
Ru single atoms and clusters are fabricated on CoP substrate simultaneously, which helps to achieve excellent catalytic activity for hydrogen evolution reaction.
Ru single atoms and clusters are fabricated on CoP substrate simultaneously, which helps to achieve excellent catalytic activity for hydrogen evolution reaction.
2023, 42(4): 100042
doi: 10.1016/j.cjsc.2023.100042
Abstract:
2023, 42(4): 100045
doi: 10.1016/j.cjsc.2023.100045
Abstract:
2023, 42(4): 100057
doi: 10.1016/j.cjsc.2023.100057
Abstract:
2023, 42(4): 100062
doi: 10.1016/j.cjsc.2023.100062
Abstract:
A novel luminescent 3,8-connected double interpenetrated dual-wall “cage in cage” (MOF), {[In6(O)3(BTB)4]·3H2O}n (1), exhibits extra-high thermal and pH stability. It can sense the multiple antibiotic drugs and detect NFT in milk, and exhibits attractive detection sensitivity and selectivity. Furthermore, the DFT theoretical calculation reveals the sensing mechanism.
A novel luminescent 3,8-connected double interpenetrated dual-wall “cage in cage” (MOF), {[In6(O)3(BTB)4]·3H2O}n (1), exhibits extra-high thermal and pH stability. It can sense the multiple antibiotic drugs and detect NFT in milk, and exhibits attractive detection sensitivity and selectivity. Furthermore, the DFT theoretical calculation reveals the sensing mechanism.
