Preparation of a novel catalyst UDCaT-5: enhancement in activity of acid-treated zirconia-effect of treatment with chlorosulfonic acid vis-a-vis sulfuric acid

被引：117

作者：

Yadav, GD ^{[1
]}

Murkute, AD ^{[1
]}

机构：

[1] Univ Bombay, Inst Chem Technol, Dept Chem Engn, Bombay 400019, Maharashtra, India

来源：

JOURNAL OF CATALYSIS | 2004年 / 224卷 / 01期

关键词：

sulfated zirconia; superacidity; UDCaT-5; chlorosulfonic acid; sulfuric acid;

D O I：

10.1016/j.jcat.2004.02.021

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：

UDCaT-5, a zirconia-based catalyst, with high sulfur content (9% w/w) but preservation of the tetragonal phase of zirconia was synthesized for the first time, by using chlorosulfonic acid as a new source for sulfate ions. UDCaT-5 was characterized by using elemental analysis, FTIR, ammonia-TPD, XRD, and BET surface area. Its catalytic activity and stability were evaluated and compared with S-ZrO2 in three different reactions. The characterization and reaction studies show that UDCaT-5 exhibits more superacidity vis-A-vis conventional sulfated zirconia prepared by using sulfuric acid. (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：218 / 223

页数：6

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