The fabrication of TiO2-supported zeolite with core/shell heterostructure for ethanol dehydration to ethylene

被引：33
作者：
Wu, Liang-Peng [1 ,2 ]
Li, Xin-Jun [1 ]
Yuan, Zhen-Hong [1 ]
Chen, Yong [1 ]
机构：
[1] Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2009年 / 11卷 / 01期
关键词：
TiO2-supported zeolite; Core/shell heterostructure; Dehydration; Ethanol; Ethylene; CATALYTIC CONVERSION; ACID; CRYSTALLIZATION; ALCOHOLS; H-ZSM-5; BETA;
D O I：
10.1016/j.catcom.2009.08.013
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The TiO2-supported zeolite with core/shell heterostructure was fabricated by coating aluminosilicate zeolite (ASZ) on the TiO2 inoculating seed via in situ hydrothermal synthesis. The catalysts were characterized by transmission electron microscope (TEM), X-ray diffraction (XRD), nitrogen physisorption (BET), and Fourier transform infrared spectroscopy (FT-IR). The surface acidity of the catalysts was measured by pyridine-TPD method. The catalytic performance of the catalysts for ethanol dehydration to ethylene was also investigated. The results show that the TiO2-supported zeolite composite catalyst with core/shell heterostructure exhibits prominent conversion efficiency for ethanol dehydration to ethylene. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：67 / 70
页数：4
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