Preparation of a novel catalyst UDCaT-5: enhancement in activity of acid-treated zirconia—effect of treatment with chlorosulfonic acid vis-à-vis sulfuric acid
- 作者：Yadav ; Ganapati D. ; Murkute ; Ambareesh D.
- 关键词：Sulfated zirconia ; Superacidity ; UDCaT-5 ; Chlorosulfonic acid ; Sulfuric acid
- 刊名：Journal of Catalysis
- 出版年：2004
- 期刊代码：97_00219517
- 类别：ce
- 出版时间：May 15, 2004
- 卷：224
- 期：1
- 页码：218-223
- 文件大小：195 K
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-à-vis conventional sulfated zirconia prepared by using sulfuric acid.
ZrO2 in three different reactions. The characterization and reaction studies show that UDCaT-5 exhibits more superacidity vis-à-vis conventional sulfated zirconia prepared by using sulfuric acid.