Synthesis of zeolite crystals with unusual morphology: Application in acid catalysis
作者： F. Ocampo , J.A. Cunha , M.R. de Lima Santos , J.P. Tessonnier , M.M. Pereira
DOI: 10.1016/J.APCATA.2010.09.037
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摘要: Abstract ZSM-5 zeolite nanocrystals having a rectangular morphology (French fries-like) and size comprised between 50 100 nm were prepared using cheap sugar cane bagasse as sacrificial template. Two biomass types, un-treated acid hydrolyzed bagasse, used. A relationship has been established the chemical composition of vegetal grown crystals. Aligned allowed to grow on non substrate, combination supramolecular templating conventional self-assembly template cations silica species. The latter material enhanced diffusional properties in comparison with purely microporous zeolite, well crystals bagasse. Their catalytic behavior n-hexane cracking reaction led higher selectivity toward light olefins. double novelty consists manufacture hierarchical microspheres (diameter about 1 μm) formed by self-aggregation subunits. In addition, renewable source can be used replacement expensive polymers.
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sci-hub.se 参考文章(59)
Ch Baerlocher, Lynne B McCusker, David H Olson, Atlas of Zeolite Framework Types ,(2007)
C. Caruso, A. Nastro., Synthesis of ZSM-5 and A zeolites on porous alumina substrates Studies in Surface Science and Catalysis. ,vol. 125, pp. 93- 100 ,(1999) , 10.1016/S0167-2991(99)80201-8
Ketty Bilba, Alex Ouensanga, Fourier transform infrared spectroscopic study of thermal degradation of sugar cane bagasse Journal of Analytical and Applied Pyrolysis. ,vol. 38, pp. 61- 73 ,(1996) , 10.1016/S0165-2370(96)00952-7
Yunming Fang, Haoquan Hu, Guohua Chen, In Situ Assembly of Zeolite Nanocrystals into Mesoporous Aggregate with Single-Crystal-Like Morphology without Secondary Template Chemistry of Materials. ,vol. 20, pp. 1670- 1672 ,(2008) , 10.1021/CM703265Q
B. Louis, F. Ocampo, H.S. Yun, J.P. Tessonnier, M. Maciel Pereira, Hierarchical Pore ZSM-5 Zeolite Structures: from Micro to Macro-Engineering of Structured Catalysts Chemical Engineering Journal. ,vol. 161, pp. 397- 402 ,(2010) , 10.1016/J.CEJ.2009.09.041
Kresten Egeblad, Christina H. Christensen, Marina Kustova, Claus H. Christensen, Templating mesoporous zeolites Chemistry of Materials. ,vol. 20, pp. 946- 960 ,(2008) , 10.1021/CM702224P
Seungju Lee, Daniel F. Shantz, High temperature synthesis of silicalite-1 in cationic microemulsions Microporous and Mesoporous Materials. ,vol. 86, pp. 268- 276 ,(2005) , 10.1016/J.MICROMESO.2005.07.026
Mark E. Davis, Ordered porous materials for emerging applications Nature. ,vol. 417, pp. 813- 821 ,(2002) , 10.1038/NATURE00785
A.J. Maia, B. Louis, Y.L. Lam, M.M. Pereira, Ni-ZSM-5 catalysts: Detailed characterization of metal sites for proper catalyst design Journal of Catalysis. ,vol. 269, pp. 103- 109 ,(2010) , 10.1016/J.JCAT.2009.10.021
A. Zampieri, S. Kullmann, T. Selvam, J. Bauer, W. Schwieger, H. Sieber, T. Fey, P. Greil, Bioinspired Rattan-Derived SiSiC/Zeolite Monoliths: Preparation and Characterisation Microporous and Mesoporous Materials. ,vol. 90, pp. 162- 174 ,(2006) , 10.1016/J.MICROMESO.2005.10.049