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中孔分子筛MCM-41形成机理的考察
被引：16
作者：
袁忠勇
陈铁红
王敬中
李赫咺
机构：
[1] 南开大学化学系催化研究室!天津,南开大学化学系催化研究室!天津,南开大学化学系催化研究室!天津,南开大学化学系催化研究室!天津
来源：
关键词：
中孔;
分子筛;
MCM－41;
形成机理;
D O I：
暂无
中图分类号：
O647 [表面现象的物理化学];
学科分类号：
070305 [高分子化学与物理];
摘要：
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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页码：452 / 454
页数：3
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