| 缓冲体系中高热和水热稳定性的MCM-48介孔分子筛的合成 |
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| 引用本文： | 孔令东,刘苏,颜学武,贺鹤勇,李全芝.缓冲体系中高热和水热稳定性的MCM-48介孔分子筛的合成[J].化学学报,2005,63(13):1241-1244. |
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| 作者姓名： | 孔令东 刘苏 颜学武 贺鹤勇 李全芝 |
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| 作者单位： | 复旦大学化学系和上海市分子催化及创新材料实验室,上海,200433;复旦大学环境科学与工程系,上海,200433 |
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| 基金项目： | 国家自然科学基金(No.20303005)资助项目 |
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| 摘 要： | 利用混合阳离子-非离子表面活性剂为模板剂在缓冲体系中成功地合成出具有高热和水热稳定性的MCM-48介孔材料. 通过XRD, N2吸附-脱附, 29Si MAS NMR和 31P MAS NMR等手段对样品进行了表征. 结果表明, 合成的MCM-48材料具有高的比表面积和高度有序的孔道系统. 样品在空气中于900 ℃下焙烧15 h和在600 ℃ 100%水蒸气下处理8～10 h, 仍能保持良好的立方孔道结构, 显示很高的热稳定性和极好的水热稳定性.
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| 关 键 词： | 缓冲体系 MCM-48 混合表面活性剂 介孔材料 |
| 收稿时间： | 2004-9-28 |
| 修稿时间： | 2005-3-8 |
Synthesis of Highly Thermally and Hydrothermally Stable MCM-48 in Buffer Solution |
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| KONG, Ling-Dong,LIU, Su,YAN, Xue-Wu,HE, He-Yong,LI, Quan-Zhi.Synthesis of Highly Thermally and Hydrothermally Stable MCM-48 in Buffer Solution[J].Acta Chimica Sinica,2005,63(13):1241-1244. |
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| Authors: | KONG Ling-Dong LIU Su YAN Xue-Wu HE He-Yong LI Quan-Zhi |
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| Institution: | (Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433)( Department of Environmental Science and Engineering, Fudan University, Shanghai 200433) |
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| Abstract: | Mesoporous MCM-48 with high thermal and hydrothermal stability has been successfully synthesized in buffer solution by mixed cationic-nonionic surfactant templating pathway. The synthesized material was characterized by XRD, N2 adsorption-desorption isotherms, 29Si and 31P MAS NMR. The characteristic results showed that the MCM-48 material possessed high specific surface areas and well-ordered channel systems. The MCM-48 sample treated with 100% steam at 600 ℃ for 8～10 h or calcined in air at 900 ℃ for 15 h could still retain its cubic structure, indicating that the sample has high thermal and hydrothermal stability. |
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| Keywords: | buffering system MCM-48 mixed surfactant mesoporous material |
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