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Type: Artigo de periódico
Title: Factors responsible for the activity of alumina surfaces in the catalytic epoxidation of cis-cyclooctene with aqueous H2O2
Author: Rinaldi, R
Schuchardt, U
Abstract: The structural, textural, and chemical properties as well as the hydrophilicity of four different sol-gel aluminas were determined by different methods and compared with their activity in the catalytic epoxidation of cis-cyclooctene with aqueous H2O2. It was found that the hydrophilicity of the gamma-alumina surface is the principal factor responsible for the difference in catalytic activity. The hydrophilicity of gamma-alumina should be sufficient to guarantee a fast reaction with hydrogen peroxide on the surface but should not to be too high in order to allow the approach of olefin to the active sites. (C) 2004 Elsevier Inc. All rights reserved.
Subject: sol-gel alumina
textural properties
chemical properties
surface hydrophilicity
catalytic epoxidation
hydrogen peroxide
Country: EUA
Editor: Academic Press Inc Elsevier Science
Citation: Journal Of Catalysis. Academic Press Inc Elsevier Science, v. 227, n. 1, n. 109, n. 116, 2004.
Rights: fechado
Identifier DOI: 10.1016/j.jcat.2004.06.028
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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