Active solid acid catalysts prepared by sulfonation of carbonization-controlled mesoporous carbon materials

被引：146

作者：

Xing, Rong ^{[1
]}

Liu, Yueming ^{[1
]}

Wang, Yong ^{[1
]}

Chen, Li ^{[1
]}

Wu, Haihong ^{[1
]}

Jiang, Yongwen ^{[1
]}

He, Mingyuan ^{[1
]}

Wu, Peng ^{[1
]}

机构：

[1] E China Normal Univ, Dept Chem, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2007年 / 105卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

mesoporous carbon; sulfonation; CMK-3; solid acid; sulfonic acid group;

D O I：

10.1016/j.micromeso.2007.06.043

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A novel sulfonic acid group-functionalized mesoporous carbon was prepared through vapour-phase transfer sulfonation of CMK-3 type mesoporous carbon with the controllable carbonization degree. The method of vapour-phase sulfonation, that is, through contacting the sample powders with the vapor from fuming sulfuric acid in a closed autoclave, proved to be more effective than both the direct dipping of the carbon in concentrated or fuming H2SO4 and the treatment with pure SO3 gas. The influence of carbonization temperature on the sulfonation was investigated, suggesting an optimum temperature of 823 K. The SO3H group-functionalized mesoporous carbon, CMK-3-SO3H, was characterized by means of XRD, SEM, TEM, N-2 adsorption-desorption, 13 C NMR, FTIR and elemental analysis, which indicated that it had uniform mesopores together with an extremely high surface area, and also contained an amount of acid sites as high as 1.3 mmol g(-1). CMK-3-SO3H catalyzed efficiently the liquid-phase Beckmann rearrangement of cyclohexanone oxime and condensation reactions involving bulky aromatic aldehydes. (C) 2007 Elsevier Inc. All rights reserved.

引用

页码：41 / 48

页数：8

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