| 中孔分子筛MCM-41形成机理的考察 |
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| 引用本文： | 袁忠勇,陈铁红,王敬中,李赫咺.中孔分子筛MCM-41形成机理的考察[J].物理化学学报,1997,13(5):452-454. |
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| 作者姓名： | 袁忠勇 陈铁红 王敬中 李赫咺 |
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| 作者单位： | Catalysis Laboratory,Department of Chemistry,Nankai University,Tianjin 300071 |
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| 摘 要： | MCM－41分子筛是九十年代初期美国Mobil公司开发的一种新型中孔（mesoporous）材料1]．它以C8－C16季俊碱表面活性剂作为模板剂水热法合成，具有2－10nm的孔径，孔道六方有序排列，高比表面和高吸附容量，中等酸性和稳定性，是一种有潜在应用前景的吸附和催化材料．目前，关于
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| 关 键 词： | 中孔 分子筛 MCM-41 形成机理 |
| 收稿时间： | 1996-09-02 |
| 修稿时间： | 1996-11-04 |
Study of the Formation Mechanism of Mesoporous Molecular Sieve MCM-41 |
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| Yuan Zhongyong, Chen Tiehong, Wang Jingzhong, Li Hexuan.Study of the Formation Mechanism of Mesoporous Molecular Sieve MCM-41[J].Acta Physico-Chimica Sinica,1997,13(5):452-454. |
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| Authors: | Yuan Zhongyong Chen Tiehong Wang Jingzhong Li Hexuan |
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| Institution: | Catalysis Laboratory,Department of Chemistry,Nankai University,Tianjin 300071 |
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| Abstract: | The formation mechanism of mesoporous molecular sieve materials MCM-41 in differ-ent synthetic systerns has been studied systendcally In the Na2O-(CTMA)2O-SiO2-H2O system,it is found that liquid-crystal templating mechanism should be that silica first forms silicated mi-celle with surfactant cation, then silica/CTMA micelle polylnerizes with each other forming thehexagonal mesophase. The experimental results in the TMAOH-SiO2-CTMABr-H2O system sup-ports the mechanism proposed for a surfactant-silica system from the lamellar to the hexagonalmesophase. Therefore, it is found that the formation mechanisrns of MCM-41 molecular sieves arenot the same under different synthetic conditions and in different synthetic systems. |
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| Keywords: | Mesopore Molecular sieve MCM-41 Formation mechanism |
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