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Sol-gel sulfonic acid silicas as catalysts

Lee, Adam Fraser and Wilson, Karen 2009. Sol-gel sulfonic acid silicas as catalysts. In: Anastas, Paul T, and Crabtree, Robert H. eds. Handbook of Green Chemistry - Green Catalysis: Volume 2 - Heterogeneous Catalysis, Weinheim: Wiley-VCH, pp. 37-57. (10.1002/9783527628698.hgc014)

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Abstract

Silica-supported sulfonic acids are a class of solid Brønsted acid catalysts that generally comprise organo-sulfonic acid groups tethered to silica surfaces. Methodologies to prepare organically modified silica have been widely developed in separation science and the techniques for their preparation are well documented. The application of this chemistry to prepare pure Brønsted sulfonic acid functionalized mesoporous silicas has stimulated significant research effort in this area, since these materials are interesting alternatives to commercially available sulfonated polymer resins, such as Amberlyst–15 and Nafion-H (sulfonated polystyrene and perfluorinated sulfonic acid resins respectively), which suffer from low surface areas and thermal stability. This chapter presents an overview of the preparation of mesostructured silica supported sulfonic acids, their catalytic applications and reviews the approaches taken to tune catalyst performance in organic transformations.

Item Type: Book Section
Date Type: Publication
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Chemistry
Subjects: Q Science > QD Chemistry
Uncontrolled Keywords: mesoporous silica; green chemistry; heterogeneous catalysis; sulfonic acid silica; solid acid
Publisher: Wiley-VCH
ISBN: 9783527324972
Last Modified: 19 Mar 2016 22:42
URI: http://orca-mwe.cf.ac.uk/id/eprint/24748

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