MCM-48 as a support for sulfonic acid catalysts

被引:31
|
作者
Bandyopadhyay, M. [2 ]
Shiju, N. R. [3 ]
Brown, D. R. [1 ]
机构
[1] Univ Huddersfield, Dept Chem & Biol Sci, Huddersfield HD1 3DH, W Yorkshire, England
[2] JIS Coll Engn, Dept Chem, Kalyani 741235, W Bengal, India
[3] Univ Amsterdam, Vant Hoff Inst Mol Sci, NL-1018 WV Amsterdam, Netherlands
关键词
Mesoporous material; MCM-48; Microcalorimetry; Sulfonic acid functionalisation; PERIODIC MESOPOROUS ORGANOSILICAS; SELECTIVE SYNTHESIS; SILICAS; SBA-15; ADSORPTION; MONOLAYERS;
D O I
10.1016/j.catcom.2010.01.018
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The ordered mesoporous silica, MCM-48, has been functionalised with sulfonic acid. Its physico-chemical properties have been compared with those of sulfonated MCM-41 and SBA-15. A higher catalytic activity for the functionalised MCM-48 in the alkylation of toluene with benzyl alcohol suggests that MCM-48 behaves as a better sulfonic acid support than MCM-41 and SBA-15. Ammonia adsorption calorimetric data shows that acid site strengths on the three supports are similar so the higher activity of MCM-48 sulfonic acid is probably due to better accessibility of its acid sites in the three-dimensional pore structure. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:660 / 664
页数:5
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