Preparation and properties of Al-AILC supported SO42-/TiO2 superacid catalyst

被引：37
|
作者：
Jiang, YX [1 ]
Chen, XM [1 ]
Mo, YF [1 ]
Tong, ZF [1 ]
机构：
[1] Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2004年 / 213卷 / 02期
基金：
中国国家自然科学基金;
关键词：
solid superacid; sulfated titania; Al-pillared clay; catalyst; characterization;
D O I：
10.1016/j.molcata.2003.12.014
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：
SO42-/TiO2/Al-pillared clay (STALI-PILC) superacid was prepared by loading active component SO42-/TiO2 on Al-pillared clay. The texture structure properties of the catalyst were studied by means of x-ray powder diffraction and the adsorption of N-2. Acidity properties of the catalyst were tested by Hammett indicator method and FT-IR spectra of adsorbed pyridine technique. The characterization results indicated that Al-PILC carrier could inhibit the information of anatase TiO2 and the transformation of anatase TiO2 into rutile TiO2. ST/Al-PILC catalyst possesses both Lewis and Bronsted acid sites, and the number of acid sites on ST/Al-PILC is much larger than that on Al-PILC carrier, but its acid strength is lower than that of ST. Experimental results show that ST/Al-PILC is an effective catalyst for esterification of n-pentanol with benzoic acid. (C)2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：231 / 234
页数：4
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