六方棱柱结构介孔氧化硅材料的合成及其机制探讨

无机材料学报

六方棱柱结构介孔氧化硅材料的合成及其机制探讨

王连洲; 施剑林; 禹剑; 阮美玲; 严东生

中国科学院上海硅酸盐研究所高性能陶瓷超微结构国家重点实验室上海 200050

收稿日期:1998-08-20 修回日期:1998-09-14 出版日期:1999-08-20 网络出版日期:1999-08-20

Study on the Synthesis and Mechanism of Mesoporous Silica with Hexastyle Structure

WANG Lian-Zhou, SHI Jian-Lin, YU Jian, RUAN Mei-Ling, YAN Dong-Sheng

State Key Lab of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China

Received:1998-08-20 Revised:1998-09-14 Published:1999-08-20 Online:1999-08-20

摘要/Abstract

摘要： 在强酸性条件下合成了具有六方棱柱结构的介孔氧化硅ＭＣＭ-４１材料，并通过ＸＲＤ、氮气吸附、ＳＥＭ、ＨＲＴＥＭ等手段对材料性能进行了表征结果表明：在微米尺度上具有六方棱柱结构的ＭＣＭ-４１材料，是由定向规则排列的纳米孔道组成表面附着硅酸根离子的表面活性剂胶束按照液晶几何构造定向聚集生长，是导致六方棱柱结构介孔材料形貌生成的主要原因

关键词: 介孔氧化硅, 六方棱柱, 形貌生成

Abstract: The mesoporous silica MCM--41 materials with hexastyle structure were synthesized under strongly acidic condition.
The characteristics of samples were investigated by using XRD, N₂ adsorption, HREM, and SEM techniques. The results show
that MCM-41 powder with hexastyle structure, which is wormlike in micrometer-scale, consists of thousands of mesoporous channels in
nano-scale. The morphogenesis of hexastyle mesoporous silica is due to the accretion of surfactant micella combined with silica oligmers
in the low concentration of TEOS.

Key words: mesoporous silica MCM--41, hexastyle, morphogenesis

中图分类号:

TB32

王连洲,施剑林,禹剑,阮美玲,严东生. 六方棱柱结构介孔氧化硅材料的合成及其机制探讨[J]. 无机材料学报.

WANG Lian-Zhou,SHI Jian-Lin,YU Jian,RUAN Mei-Ling,YAN Dong-Sheng. Study on the Synthesis and Mechanism of Mesoporous Silica with Hexastyle Structure[J]. Journal of Inorganic Materials.

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