TY - JOUR
T1 - Fabrication of hierarchically ordered porous films composed of imogolite via colloidal templating
AU - Kuroda, Yoshiyuki
AU - Tamakoshi, Mamoru
AU - Murakami, Junnosuke
AU - Kuroda, Kazuyuki
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2007/3
Y1 - 2007/3
N2 - Hierarchically ordered porous materials composed of imogolite with macro-, meso- and microporous systems were fabricated via colloidal templating. The monodispersed polystyrene particles used as templates were assembled into a close-packed structure on Si substrates. An imogolite sol was infiltrated into voids of polystyrene particles to form composite films. The ordered macropores as well as micro- and mesopores originating from imogolite were confirmed after the removal of templates by either extraction with toluene or calcination. The films were stable in organic solvents, such as acetone, ethanol, and hexane. Although the extracted film was unstable in water, the stability was improved by calcination. Imogolite is found to be a quite useful building block to fabricate hierarchically ordered porous materials with a wide range of porosities without using surfactants as templates.
AB - Hierarchically ordered porous materials composed of imogolite with macro-, meso- and microporous systems were fabricated via colloidal templating. The monodispersed polystyrene particles used as templates were assembled into a close-packed structure on Si substrates. An imogolite sol was infiltrated into voids of polystyrene particles to form composite films. The ordered macropores as well as micro- and mesopores originating from imogolite were confirmed after the removal of templates by either extraction with toluene or calcination. The films were stable in organic solvents, such as acetone, ethanol, and hexane. Although the extracted film was unstable in water, the stability was improved by calcination. Imogolite is found to be a quite useful building block to fabricate hierarchically ordered porous materials with a wide range of porosities without using surfactants as templates.
KW - Colloidal templating
KW - Hierarchically ordered porous materials
KW - Imogolite
KW - Nanotube
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U2 - 10.2109/jcersj.115.233
DO - 10.2109/jcersj.115.233
M3 - Article
AN - SCOPUS:33847693561
VL - 115
SP - 233
EP - 236
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
SN - 1882-0743
IS - 1339
ER -