文献类型：期刊文献

英文题名：Direct syntheses of a promising industrial organic-inorganic hybrid silica containing methanesulphonate

作者：Liu, Naiwang[1];Pu, Xin[1];Shi, Li[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2014

卷号：119

起止页码：114

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20143518114438);WOS:【SCI-EXPANDED(收录号:WOS:000342680700012)】；

语种：英文

外文关键词：Organic-inorganic materials; Sulphonation; Solid acid catalyst; Alkylation

摘要：A simple procedure was developed for the synthesis of sulphonic group-functionalised silica material (SAM) under formic acid conditions without the presence of surfactant species or precursors. The organic-inorganic hybrid materials exhibited high catalytic activity and excellent thermal stability in the alkylation of aromatics with olefins. Pyridine-FTIR indicated that SAM has abundant Lewis acid sites, especially weak acid sites. Si-29 and Al-27 MAS NMR confirmed that aluminium methanesulphonate was anchored on the surface of the silica matrix by the covalent bond of Si-O-Al. (C) 2014 Elsevier Ltd. All rights reserved.