SO42-/TiO2-SiO2 mixed oxide catalyst, 3. An eco-friendly catalyst for esterification of acetic acid

被引：0
|
作者：
Santosh Kumar Samantaray
Kulamani Parida
机构：
[1] EM & IC Department,Regional Research Laboratory (CSIR)
来源：
Reaction Kinetics and Catalysis Letters | 2003年 / 78卷
关键词：
TiO2-SiO2; and acetic acid.; esterification;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effect of addition of titania to silica was examined by various characterization techniques such as FT-IR, BET surface area, surface acid strength/acid sites by the Hammett indicator method and Brönsted/Lewis acid sites by pyridine adsorbed IR study. Ti-O-Si bond is formed in case of TiO2-SiO2 sample, as observed from FT-IR data. Acid strength, surface acid sites, and rate constant for esterification of acetic acid are increased with Ti-O-Si bonding and sulfate impregnation. Both Brönsted and Lewis acid sites are responsible for catalysing the esterification reaction.
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页码：381 / 387
页数：6
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