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Mechanical Stability of Mesoporous Materials, MCM-48 and MCM-41 |
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| Authors: | Takashi Tatsumi Keiko A. Koyano Yoshinori Tanaka Shinichi Nakata |
| Affiliation: | (1) Division of Material Science and Chemical Engineering, Yokohama National University, Tokiwadai, Yokohama, 240-8501, Japan;(2) Engineering Research Institute, School of Engineering, The University of Tokyo, Yayoi, Tokyo, 113, Japan;(3) Chiyoda Corporation, Moriya-cho, Kanagawa-ku, Yokohama, 221, Japan |
| Abstract: | 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 N2. Trimethylsilylation of mesoporous materials proved effective in eliminating their instability to compression through enhancing hydrophobicity. |
| Keywords: | mesoporous molecular sieves MCM-41 MCM-48 mechanical stability trimethylsilylation |
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