| タイトル |
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One-Pot Room-Temperature Synthesis of Mg Containing MCM-41 Mesoporous Silica for Aldol Reactions
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| 作成者 |
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| アクセス権 |
open access |
| 権利情報 |
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en
© 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
- http://creativecommons.org/licenses/by-nc-nd/4.0/
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
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| 主題 |
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Other
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Aldol condensation
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Other
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Solid base catalyst
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Other
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Mg incorporated mesoporous silica
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Other
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Magic angle spinning nuclear magnetic resonance
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| 内容注記 |
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Abstract
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One-pot synthesis of Mg containing MCM-41 (Mg-MCM-41) materials was respectively carried out by a room temperature (RT) method and a hydrothermal (HT) method for aldol condensation of 4-nitrobenzaldehyde and acetone and self-condensation of acetone. The RT method can prepare MCM-41 materials containing large amounts of Mg while maintaining the structural characteristics of MCM-41 even at very low Si/Mg ratios (large Mg loadings), but the HT method cannot. The RT method can also give more active catalysts than the HT method, because the catalysts prepared by the RT method are more basic than those prepared by the HT one. The characterization indicates that Mg atoms in the Mg-MCM-41 prepared by the RT method exist as MgO disperses well on the wall surface of pores, while those in Mg-MCM-41 prepared by the HT method are included in the bulk with a smectite-like structure. (C) 2018 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
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| 出版者 |
en
Elsevier
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| 日付 |
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| 言語 |
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| 資源タイプ |
journal article |
| 出版タイプ |
AM |
| 資源識別子 |
HDL
http://hdl.handle.net/2115/79189
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| 関連 |
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isVersionOf
DOI
https://doi.org/10.1016/j.jmst.2016.08.025
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| 収録誌情報 |
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PISSN
1005-0302
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en
Journal of materials science & technology
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巻34
号12
開始ページ2521
終了ページ2528
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| ファイル |
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| コンテンツ更新日時 |
2023-07-26 |
