Templates for the synthesis of zeolites
Huimin Luan, Qinming Wu, Jianping Wu, Xiangju Meng*, Feng-Shou Xiao*
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ArticleSolid-state NMR study of the stability of MOR framework aluminumXinzhi Ding, Chong Liu, Jing Niu, Nan Chen, Shutao Xu*, Yingxu Wei, Zhongmin Liu
Chin. J. Struct. Chem., 2024, 43: 100247. DOI: 10.1016/j.cjsc.2024.100247
April 15, 2024
H-MOR; Solid-state NMR; H2O; Framework aluminum stability; Dealumination
ABSTRACT
Solid-state NMR study of the stability of MOR framework aluminum. The dynamic evolution of Al species in MOR zeolite has been revealed during the ion exchange and calcination processes, explaining the protective role of cations on framework aluminum and emphasizing the influence of water on zeolite framework aluminum.
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ArticlePt confined in Sn-ECNU-46 zeolite for efficient alkane dehydrogenationNaihong Wang, Longkang Zhang, Yejun Guan, Peng Wu, Hao Xu*
Chin. J. Struct. Chem., 2024, 43: 100248. DOI: 10.1016/j.cjsc.2024.100248
April 15, 2024
Alkane dehydrogenation; Heteroatom-containing zeolite; Zeolite confined catalyst; Pt-based catalyst
ABSTRACT
Bimetallic Pt–Sn catalyst confined in extra-large-pore ECNU-46 zeolite achieved a good performance in propane and n-hexane dehydrogenation reaction. -
ArticleQualitative and quantitative analysis of Brønsted and Lewis acid sites in zeolites: A combined probe-assisted 1H MAS NMR and NH3-TPD investigationRunze Liu, Yankai Bian, Weili Dai*
Chin. J. Struct. Chem., 2024, 43: 100250. DOI: 10.1016/j.cjsc.2024.100250
April 15, 2024
1H MAS NMR; NH3-TPD; Brønsted acid sites; Lewis acid sites; Zeolites
ABSTRACT
The acid sites in different zeolites including the acid type, density and strength were systematically determined by combining the probe-assisted (e.g., NH3 and CD3CN) 1H MAS NMR and NH3-TPD.
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ArticleEfficacy of Ca/ZSM-5 zeolites derived from precipitated calcium carbonate in the methanol-to-olefin processXinyu You, Xin Zhang, Shican Jiang, Yiru Ye, Lin Gu, Hexun Zhou, Pandong Ma, Jamal Ftouni, Abhishek Dutta Chowdhury*
Chin. J. Struct. Chem., 2024, 43: 100265. DOI: 10.1016/j.cjsc.2024.100265
April 15, 2024
Hierarchical zeolite; Propylene; Precipitated calcium carbonate; Methanol-to-olefins; Characterization
ABSTRACT
Hierarchical Ca/ZSM-5 zeolite synthesized by involving precipitated calcium carbonate could be an efficient methanol-to-propylene process catalyst. -
ReviewApplication of three-dimensional electron diffraction in structure determination of zeolitesYuhang Li, Yang Ling, Yanhang Ma*
Chin. J. Struct. Chem., 2024, 43: 100237. DOI: 10.1016/j.cjsc.2024.100237
April 15, 2024
Electron diffraction; Three-dimensional electron diffraction; Zeolite; Structure solution; Electron crystallography
ABSTRACT
Owing to strong interactions between electrons and matter, three-dimensional electron diffraction provides a powerful tool to solve crystal structures of zeolite micro-/nanocrystals.
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ReviewTemplates for the synthesis of zeolitesHuimin Luan, Qinming Wu, Jianping Wu, Xiangju Meng*, Feng-Shou Xiao*
Chin. J. Struct. Chem., 2024, 43: 100252. DOI: 10.1016/j.cjsc.2024.100252
April 15, 2024
Zeolites; Templates; Zeolites synthesis; Zeolite structure
ABSTRACT
Templates are critical for zeolite synthesis. It is essential to understand the types, roles, and principles of templates in the zeolite synthesis for synthesizing zeolites efficiently.
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