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

被引：0
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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.
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页码：123 / 126
页数：3
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