Liquid Crystal Templating of Mesoporous Materials
作者:
JohnM. Seddon,
MariaE. Raimondi,
期刊:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
(Taylor Available online 2000)
卷期:
Volume 347,
issue 1
页码: 221-229
ISSN:1058-725X
年代: 2000
DOI:10.1080/10587250008024843
出版商: Taylor & Francis Group
关键词: lyotropic liquid crystal;surfactant templating;mesoporous materials;X-ray diffraction;catalysis
数据来源: Taylor
摘要:
There is currently great interest in the use of lyotropic liquid crystals as templates for the production of mesoporous inorganic or metallic materials having uniform pore sizes in the range 20-100 Å or greater. Such materials have potential applications as catalysts, molecular sieves or electrodes, and can accommodate molecules which are too large to fit within the pores of conventional zeolites. We have investigated the structure and alignment of mesoporous materials produced using the True Liquid Crystal Templating (TLCT) method. In TLCT, the surfactant forms a lyotropic liquid crystal phase of well defined geometry and dimensions at the start of the synthesis. We have been able to produce hexagonal mesoporous coatings within capillaries, having a specific alignment of the 2-D hexagonal lattice, as probed by X-ray diffraction. We have also followed the structural kinetics of the alignment process. These TLCT mesoporous materials may be functionalized for catalytic applications.
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