Zeolite nanocrystals inside mesoporous TUD-1: A high-performance catalytic composite

被引:67
作者
Waller, P
Shan, ZP
Marchese, L
Tartaglione, G
Zhou, WZ
Jansen, JC
Maschmeyer, T
机构
[1] PORE, Ceram Membrane Ctr, NL-2628 BL Delft, Netherlands
[2] ABB Lummus Global Inc, Bloomfield, NJ 07003 USA
[3] Univ Piemonte Orientale Amedeo Avogadro, Dipartimento Sci & Technol Avanzate, I-15100 Alessandria, Italy
[4] Univ St Andrews, Sch Chem, St Andrews KY16 9ST, Fife, Scotland
[5] Univ Sydney, Sch Chem, Ctr Mol Catalysis, Sydney, NSW 2006, Australia
关键词
heterogeneous catalysis; materials science; mesoporous materials; microporous materials; vibrational spectroscopy; zeolites;
D O I
10.1002/chem.200400343
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A hierarchically structured composite material with interconnecting meso- and micropores has been developed with the aim to optimize zeolite performance. A general synthetic method has been developed that, in a controlled manner, allows for various types of nanosized zeolite to be incorporated into a three-dimensional mesoporous matrix. Nanosized zeolite Beta was used to exemplify this new approach, resulting in a system in which zeolite Beta shows a higher cracking activity per gram of zeolite than pure nanosized zeolite Beta for the model feed n-hexane. Additionally, FTIR studies of CO and NH3 adsorption revealed that the nature of the acid sites in the nanozeolite has been partially modified due to the interactions with the mesoporous matrix, TUD-1.
引用
收藏
页码:4970 / 4976
页数:7
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