Characterization of vanadia-silica and titania-silica aero- and xerogels by acid-base probe reactions

被引：0

作者：

Á. Molnár

M. Bartók

M. Schneider

A. Baiker

机构：

来源：

Catalysis Letters | 1997年 / 43卷

关键词：

Mixed Oxide; Silicalites; Wide Composition Range; Xerogel Sample; Methyloxirane;

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摘要：

The acid-base properties of 10 wt% V2O5-SiO2 and 10 wt% TiO2-SiO2 binary mixed oxide aero- and xerogels were determined by studying the transformation of methyloxirane and 1-butane. The transformations (the isomerization of methyloxirane to propanal and the double-bond migration of 1-butene to form isomeric 2-butenes) indicate that all samples contain mainly acidic sites. Correlations are shown to exist between heteroconnectivity (derived from FTIR analysis) in conjunction with the textural properties and the catalytic performance.

引用

页码：123 / 126

页数：3