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Organic–inorganic hybrid mesoporous silicas: functionalization, pore size, and morphology control
Author(s) -
Park Sung Soo,
Ha ChangSik
Publication year - 2006
Publication title -
the chemical record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.61
H-Index - 78
eISSN - 1528-0691
pISSN - 1527-8999
DOI - 10.1002/tcr.20070
Subject(s) - mesoporous material , mesoporous organosilica , materials science , hybrid material , chemical engineering , micelle , photocatalysis , mesoporous silica , surface modification , adsorption , template , nanotechnology , copolymer , catalysis , chemistry , organic chemistry , polymer , composite material , aqueous solution , engineering
Topological design of mesoporous silica materials, pore architecture, pore size, and morphology are currently major issues in areas such as catalytic conversion of bulky molecules, adsorption, host–guest chemistry, etc. In this sense, we discuss the pore size‐controlled mesostructure, framework functionalization, and morphology control of organic–inorganic hybrid mesoporous silicas by which we can improve the applicability of mesoporous materials. First, we explain that the sizes of hexagonal‐ and cubic‐type pores in organic–inorganic hybrid mesoporous silicas are well controlled from 24.3 to 98.0 Å by the direct micelle‐control method using an organosilica precursor and surfactants with different alkyl chain lengths or triblock copolymers as templates and swelling agents incorporated in the formed micelles. Second, we describe that organic–inorganic hybrid mesoporous materials with various functional groups form various external morphologies such as rod, cauliflower, film, rope, spheroid, monolith, and fiber shapes. Third, we discuss that transition metals (Ti and Ru) and rare‐earth ions (Eu 3+ and Tb 3+ ) are used to modify organic–inorganic hybrid mesoporous silica materials. Such hybrid mesoporous silica materials are expected to be applied as excellent catalysts for organic reactions, photocatalysis, optical devices, etc. © 2006 The Japan Chemical Journal Forum and Wiley Periodicals, Inc. Chem Rec 6: 32–42; 2006: Published online in Wiley InterScience ( www.interscience.wiley.com ) DOI 10.1002/tcr.20070