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

被引：268

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

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 10期

基金：

瑞典研究理事会; 中国国家自然科学基金;

关键词：

MFI ZEOLITE; INTRACRYSTAL MESOPORES; HYDROTHERMAL SYNTHESIS; DIRECTED SYNTHESIS; CATIONIC POLYMERS; 4,6-DIMETHYLDIBENZOTHIOPHENE; HYDRODESULFURIZATION; NANOSHEETS; CARBON; PORES;

D O I：

10.1021/ja300078q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

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.

引用

页码：4557 / 4560

页数：4

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