Home

Citation: Cheng Mo-Jie, Yang Ya-Shu. Effect of High Temperature Water Steaming on the Active Centers of ZnHZSM-5[J]. Acta Physico-Chimica Sinica, ;1996, 12(08): 721-726. doi: 10.3866/PKU.WHXB19960810 shu

Effect of High Temperature Water Steaming on the Active Centers of ZnHZSM-5

1.
State Key Laboratory of Catalysis,Institute of Chemical Physics,Academia Sincia,Dalian 116023

Received Date: 12 February 1996
Available Online: 15 August 1996

The effects of high temperature water steaming (HTWS) on the structure of HZSM-5 and ZnHZSM-5 catalysts have been investigated using XRD, XPS and IR spectrum of adsorbed pyridine, and the aromatization of propane has been tested as a probe reaction to show the change of catalytic performance. The result indicate that the treatment of HTWS nearly has no significant effect on the crystallinity of zeolite catalysts, but it lead to the dealumination of zeolite framework and the migration of zinc ions departing from the cation positions and results in the enrichment of aluminum and zinc content on the outer surface of zeolite crystallites and the decrease of catalyst acidity, and comparing the variation of Si/Al with Zn/Si and Zn/Al, it is shown that the framework aluminum species with zinc counterions are more difficult to detach from the framework than those with proton counterions. The variation of the reaction activity and selectivity of propane aromatization also verifies that the active centers of B and Zn-L acids are diminished differently depending on the treatment of HTWS processing.
- ZnHZSM-5,
- Water steaming,
- Propane;Active centers,
- Dealumination
  ,
1. [1]
  Quanliang Chen , Zhaohui Zhou . Research on the Active Site of Nitrogenase over Fifty Years. University Chemistry, 2024, 39(7): 287-293. doi: 10.3866/PKU.DXHX202310133
2. [2]
  Ping Song , Nan Zhang , Jie Wang , Rui Yan , Zhiqiang Wang , Yingxue Jin . Experimental Teaching Design on Synthesis and Antitumor Activity Study of Cu-Pyropheophorbide-a Methyl Ester. University Chemistry, 2024, 39(6): 278-286. doi: 10.3866/PKU.DXHX202310087
3. [3]
  Xinting XIONG , Zhiqiang XIONG , Panlei XIAO , Xuliang NIE , Xiuying SONG , Xiuguang YI . Synthesis, crystal structures, Hirshfeld surface analysis, and antifungal activity of two complexes Na(Ⅰ)/Cd(Ⅱ) assembled by 5-bromo-2-hydroxybenzoic acid ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1661-1670. doi: 10.11862/CJIC.20240145
4. [4]
  Ping ZHANG , Chenchen ZHAO , Xiaoyun CUI , Bing XIE , Yihan LIU , Haiyu LIN , Jiale ZHANG , Yu'nan CHEN . Preparation and adsorption-photocatalytic performance of ZnAl@layered double oxides. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1965-1974. doi: 10.11862/CJIC.20240014
5. [5]
  Mei Yan , Rida Feng , Yerdos·Tohtarkhan , Biao Long , Li Zhou , Chongshen Guo . Expansion and Extension of Liquid Saturated Vapor Measurement Experiment. University Chemistry, 2024, 39(3): 294-301. doi: 10.3866/PKU.DXHX202308103
6. [6]
  Junke LIU , Kungui ZHENG , Wenjing SUN , Gaoyang BAI , Guodong BAI , Zuwei YIN , Yao ZHOU , Juntao LI . Preparation of modified high-nickel layered cathode with LiAlO₂/cyclopolyacrylonitrile dual-functional coating. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1461-1473. doi: 10.11862/CJIC.20240189
7. [7]
  Jing Wang , Pingping Li , Yuehui Wang , Yifan Xiu , Bingqian Zhang , Shuwen Wang , Hongtao Gao . Treatment and Discharge Evaluation of Phosphorus-Containing Wastewater. University Chemistry, 2024, 39(5): 52-62. doi: 10.3866/PKU.DXHX202309097
8. [8]
  Zhaohu Li , Weidong Wang , Yuhao Liu , Mingzhe Han , Lingling Wei , Huan Jiao . Research on the Safety Management and Disposal of Chemical Laboratory Waste. University Chemistry, 2024, 39(10): 128-136. doi: 10.3866/PKU.DXHX202312090
9. [9]
  Aimin Fu , Chunmei Chen , Qin Li , Nanjin Ding , Jiaxin Dong , Yu Chen , Mengsha Wei , Weiguang Sun , Hucheng Zhu , Yonghui Zhang . Niduenes A−F, six functionalized sesterterpenoids with a pentacyclic 5/5/5/5/6 skeleton from endophytic fungus Aspergillus nidulans. Chinese Chemical Letters, 2024, 35(9): 109100-. doi: 10.1016/j.cclet.2023.109100
10. [10]
  Lisen Sun , Yongmei Hao , Zhen Huang , Yongmei Liu . Experimental Teaching Design for Viscosity Measurement Serves the Optimization of Operating Conditions for Kitchen Waste Treatment Equipment. University Chemistry, 2024, 39(2): 52-56. doi: 10.3866/PKU.DXHX202307063
11. [11]
  Kun Xu , Xinxin Song , Zhilei Yin , Jian Yang , Qisheng Song . Comprehensive Experimental Design of Preferential Orientation of Zinc Metal by Heat Treatment for Enhanced Electrochemical Performance. University Chemistry, 2024, 39(4): 192-197. doi: 10.3866/PKU.DXHX202309050
12. [12]
  Haitang WANG , Yanni LING , Xiaqing MA , Yuxin CHEN , Rui ZHANG , Keyi WANG , Ying ZHANG , Wenmin WANG . Construction, crystal structures, and biological activities of two Ln^Ⅲ₃ complexes. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1474-1482. doi: 10.11862/CJIC.20240188
13. [13]
  Yukai Jiang , Yihan Wang , Yunkai Zhang , Yunping Wei , Ying Ma , Na Du . Characterization and Phase Diagram of Surfactant Lyotropic Liquid Crystal. University Chemistry, 2024, 39(4): 114-118. doi: 10.3866/PKU.DXHX202309033
14. [14]
  Jingjing QING , Fan HE , Zhihui LIU , Shuaipeng HOU , Ya LIU , Yifan JIANG , Mengting TAN , Lifang HE , Fuxing ZHANG , Xiaoming ZHU . Synthesis, structure, and anticancer activity of two complexes of dimethylglyoxime organotin. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1301-1308. doi: 10.11862/CJIC.20240003
15. [15]
  Chunmei GUO , Weihan YIN , Jingyi SHI , Jianhang ZHAO , Ying CHEN , Quli FAN . Facile construction and peroxidase-like activity of single-atom platinum nanozyme. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1633-1639. doi: 10.11862/CJIC.20240162
16. [16]
  Congying Lu , Fei Zhong , Zhenyu Yuan , Shuaibing Li , Jiayao Li , Jiewen Liu , Xianyang Hu , Liqun Sun , Rui Li , Meijuan Hu . Experimental Improvement of Surfactant Interface Chemistry: An Integrated Design for the Fusion of Experiment and Simulation. University Chemistry, 2024, 39(3): 283-293. doi: 10.3866/PKU.DXHX202308097
17. [17]
  Chunai Dai , Yongsheng Han , Luting Yan , Zhen Li , Yingze Cao . Preparation of Superhydrophobic Surfaces and Their Application in Oily Wastewater Treatment: Design of a Comprehensive Physical Chemistry Innovation Experiment. University Chemistry, 2024, 39(2): 34-40. doi: 10.3866/PKU.DXHX202307081
18. [18]
  Zhangshu Wang , Xin Zhang , Jixin Han , Xuebing Fang , Xiufeng Zhao , Zeyu Gu , Jinjun Deng . Exploration and Design of Experimental Teaching on Ultrasonic-Enhanced Synergistic Treatment of Ternary Composite Flooding Produced Water. University Chemistry, 2024, 39(5): 116-124. doi: 10.3866/PKU.DXHX202310056
19. [19]
  Limin Shao , Na Li . A Unified Equation Derived from the Charge Balance Equation for Constructing Acid-Base Titration Curve and Calculating Endpoint Error. University Chemistry, 2024, 39(11): 365-373. doi: 10.3866/PKU.DXHX202401086
20. [20]
  . . University Chemistry, 2024, 39(5): 0-0.

Get Citation

PDF

XML

Metrics

PDF Downloads(2480)
Abstract views(3470)
HTML views(22)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return