Quantitative Determination of Brönsted Acid Sites on Zeolites: A New Approach Towards the Chemical Composition of Zeolites

被引：0
|
作者：
Benoît Louis
Stéphane Walspurger
Jean Sommer
机构：
[1] Université Louis Pasteur,Laboratoire de Physicochimie des Hydrocarbures, UMR 7513 Faculté de Chimie
来源：
Catalysis Letters | 2004年 / 93卷
关键词：
acid sites; titration; H/D exchange; zeolites; Brönsted acidity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An original quantitative method based on H/D exchange between H2O/D2O molecules and the OH groups of different zeolites has been developed for the titration of the Brönsted acid sites present on the solid surface. The measured Brönsted acid sites density appears to be in good agreement with the theoretical amount estimated by the Si/Al ratio. In contrary to classical methods, this non-destructive anhydride method titrates the whole quantity of Brönsted acid sites of zeolites.
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页码：81 / 84
页数：3
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