Sulfonic acid-functionalized periodic mesoporous organosilica

被引：104

作者：

Hamoudi, S ^{[1
]}

Kaliaguine, S ^{[1
]}

机构：

[1] Univ Laval, Dept Genie Chim, Ste Foy, PQ G1K 7P4, Canada

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2003年 / 59卷 / 2-3期

基金：

加拿大自然科学与工程研究理事会;

关键词：

mesoporous; organosilica; inorganic-organic hybrid materials; sulfonic acid; organic functional groups; solid acid;

D O I：

10.1016/S1387-1811(03)00311-1

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A series of periodic mesoporous organosilicas (PMOs) containing different amounts of sulfonic acid bearing groups were synthesized using bis(trimethoxysilyl)ethane (BTME) and mercaptopropyltrimethoxysilane (MPTMS) as framework precursors under basic conditions in the presence of cetyltrimethylammonium chloride (CTAC) surfactant. Conversion of the mercaptopropyl groups into sulfonic acid moieties was achieved via oxidation using hydrogen peroxide. Ordered cubic-like mesostructures with high surface areas (up to 950 m(2)/g) and narrow pore size distributions (up to 3.50 nm) were obtained. The structural ordering was shown to be retained after oxidation. The effect of the amount of mercaptopropylsilane incorporated in the synthesis gels on the structural properties, morphology, thermal behavior as well as the acidity of the synthesized materials was examined. (C) 2003 Elsevier Science Inc. All rights reserved.

引用

页码：195 / 204

页数：10

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