文献类型：期刊文献

英文题名：ZSM-5 Zeolite Single Crystals with b-Axis-Aligned Mesoporous Channels as an Efficient Catalyst for Conversion of Bulky Organic Molecules

作者：Liu, Fujian[1,6];Willhammar, Tom[2,3];Wang, Liang[4];Zhu, Longfeng[4];Sun, Qi[1];Meng, Xiangju[1];Carrillo-Cabrera, Wilder[5];Zou, Xiaodong[2,3];Xiao, Feng-Shou[1]

机构：[1]Zhejiang Univ, Key Lab Appl Chem Zhejiang Prov, Hangzhou 310007, Zhejiang, Peoples R China;[2]Stockholm Univ, Berzelii Ctr, EXSELLENT Porous Mat, SE-10691 Stockholm, Sweden;[3]Stockholm Univ, Dept Mat & Environm Chem, SE-10691 Stockholm, Sweden;[4]Jilin Univ, Coll Chem, Changchun 130012, Peoples R China;[5]Max Planck Inst Chern Phys Fester Stoffe, DE-01187 Dresden, Germany;[6]Shaoxing Univ, Inst Appl Chem, Shaoxing 312000, Peoples R China

年份：2012

卷号：134

期号：10

起止页码：4557

外文期刊名：JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

收录：SCI-EXPANDED(收录号：WOS:000301990600027)、、WOS

基金：This work is supported by the State Basic Research Project of China (2009CB623507), National Natural Science Foundation of China (20973079 and U1162201), the Swedish Research Council (VR), the Swedish Governmental Agency for Innovation Systems (VINNOVA), Knut and Alice Wallenberg Foundation, and Goran Gustafsson Foundation.

语种：英文

外文关键词：High resolution transmission electron microscopy - Mass transfer - Mesoporous materials - Molecules - Scanning electron microscopy - Single crystals - Zeolites

外文摘要：The relatively small and sole micropores in zeolite catalysts strongly influence the mass transfer and catalytic conversion of bulky molecules. We report here aluminosilicate zeolite ZSM-5 single crystals with b-axis-aligned mesopores, synthesized using a designed cationic amphiphilic copolymer as a mesoscale template. This sample exhibits excellent hydrothermal stability. The orientation of the mesopores was confirmed by scanning and transmission electron microscopy. More importantly, the b-axis-aligned mesoporous ZSM-5 shows much higher catalytic activities for bulky substrate conversion than conventional ZSM-5 and ZSM-5 with randomly oriented mesopores. The combination of good hydrothermal stability with high activities is important for design of novel zeolite catalysts. The b-axis-aligned mesoporous ZSM-5 reported here shows great potential for industrial applications.