Mechanical stability of mesoporous materials, MCM-48 and MCM-41

被引:62
|
作者
Tatsumi, T [1 ]
Koyano, KA
Tanaka, Y
Nakata, S
机构
[1] Yokohama Natl Univ, Div Mat Sci & Chem Engn, Yokohama, Kanagawa 2408501, Japan
[2] Univ Tokyo, Sch Engn, Inst Engn Res, Tokyo 113, Japan
[3] Chiyoda Corp, Kanagawa Ku, Yokohama, Kanagawa 221, Japan
关键词
mesoporous molecular sieves; MCM-41; MCM-48; mechanical stability; trimethylsilylation;
D O I
10.1023/A:1009682915127
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The structural collapse of mesoporous molecular sieves, MCM-48 and MCM-41 materials by mechanical compression was found to occur mechanochemically through hydrolysis of Si-O-Si bonds. Their ordered structures were retained by compressing the well-dried samples under dry N-2. Trimethylsilylation of mesoporous materials proved effective in eliminating their instability to compression through enhancing hydrophobicity.
引用
收藏
页码:13 / 17
页数:5
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