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(05): 452-454.
doi:
10.3866/PKU.WHXB19970513
Citation: Yuan Zhong-Yong, Chen Tie-Hong, Wang Jing-Zhong, Li He-Xuan. Study of the Formation Mechanism of Mesoporous Molecular Sieve MCM-41[J]. Acta Physico-Chimica Sinica, 1997, 13(05): 452-454. doi: 10.3866/PKU.WHXB19970513
Citation: Yuan Zhong-Yong, Chen Tie-Hong, Wang Jing-Zhong, Li He-Xuan. Study of the Formation Mechanism of Mesoporous Molecular Sieve MCM-41[J]. Acta Physico-Chimica Sinica, 1997, 13(05): 452-454. doi: 10.3866/PKU.WHXB19970513
English
Study of the Formation Mechanism of Mesoporous Molecular Sieve MCM-41
Abstract:
The formation mechanism of mesoporous molecular sieve materials MCM-41 in different synthetic systems has been studied systemically. In the Na2O-(CTMA)2O-SiO2-H2O system, it is found that liquid-crystal templating mechanism should be that silica first forms silicated micelle with surfactant cation, then silica/CTMA+ micelle polymerizes with each other forming the hexa nal mesophase. The experimental results in the TMAOH-SiO2-CTMABr-H2O system supports the mechanism proposed for a surfactant-silica system from the lamellar to the hexa nal mesophase. Therefore, it is found that the formation mechanisms of MCM-41 molecular sieves are not the same under different synthetic conditions and in different synthetic systems.
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Key words:
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Mesopore
- / Molecular sieve
- / MCM-41
- / Formation mechanism
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