Controlling the hierarchical pore structure of resorcinol-formaldehyde carbon cryogel microhoneycombs

Shin R. Mukai; Hirotomo Nishihara; Takashi Yoshida; Ken ichi Taniguchi; Hajime Tamon

Controlling the hierarchical pore structure of resorcinol-formaldehyde carbon cryogel microhoneycombs

Shin R. Mukai, Hirotomo Nishihara, Takashi Yoshida, Ken ichi Taniguchi, Hajime Tamon

Research output: Contribution to journal › Conference article › peer-review

Abstract

A new processing method, ice-templating method, for the preparation of ordered macroporous materials using sol-gel transformation is developed. When precursor hydrogels are unidirectionally frozen, pseudosteady state growth of ice crystals occurred inside their matrices. Such ice crystals were regularly aligned parallel to the freezing direction, and played the role of a template. A microhoneycomb morphology was formed at this freezing stage. After removal of the ice crystals by thawing and drying, organic/inorganic gel microhoneycombs with micro/mesopores inside their honeycomb walls could be obtained. Carbon cryogel microhoneycombs (CMH) preparation succeeded by applying this new method to resorcinol-formaldehyde (RF) hydrogels. The relationship between the preparation conditions and the morphology of the resulting RF cryogels is compared, and the preparation of fine CMH is presented. This is an abstract of a paper presented at the 229th ACS National Meeting (San Diego, CA 3/13-17/2005).

Original language	English
Pages (from-to)	FUEL-5
Journal	ACS National Meeting Book of Abstracts
Volume	229
Issue number	1
Publication status	Published - 2005
Externally published	Yes
Event	229th ACS National Meeting - San Diego, CA., United States Duration: 2005 Mar 13 → 2005 Mar 17

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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abstract = "A new processing method, ice-templating method, for the preparation of ordered macroporous materials using sol-gel transformation is developed. When precursor hydrogels are unidirectionally frozen, pseudosteady state growth of ice crystals occurred inside their matrices. Such ice crystals were regularly aligned parallel to the freezing direction, and played the role of a template. A microhoneycomb morphology was formed at this freezing stage. After removal of the ice crystals by thawing and drying, organic/inorganic gel microhoneycombs with micro/mesopores inside their honeycomb walls could be obtained. Carbon cryogel microhoneycombs (CMH) preparation succeeded by applying this new method to resorcinol-formaldehyde (RF) hydrogels. The relationship between the preparation conditions and the morphology of the resulting RF cryogels is compared, and the preparation of fine CMH is presented. This is an abstract of a paper presented at the 229th ACS National Meeting (San Diego, CA 3/13-17/2005).",

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AU - Mukai, Shin R.

AU - Nishihara, Hirotomo

AU - Yoshida, Takashi

AU - Taniguchi, Ken ichi

AU - Tamon, Hajime

PY - 2005

Y1 - 2005

N2 - A new processing method, ice-templating method, for the preparation of ordered macroporous materials using sol-gel transformation is developed. When precursor hydrogels are unidirectionally frozen, pseudosteady state growth of ice crystals occurred inside their matrices. Such ice crystals were regularly aligned parallel to the freezing direction, and played the role of a template. A microhoneycomb morphology was formed at this freezing stage. After removal of the ice crystals by thawing and drying, organic/inorganic gel microhoneycombs with micro/mesopores inside their honeycomb walls could be obtained. Carbon cryogel microhoneycombs (CMH) preparation succeeded by applying this new method to resorcinol-formaldehyde (RF) hydrogels. The relationship between the preparation conditions and the morphology of the resulting RF cryogels is compared, and the preparation of fine CMH is presented. This is an abstract of a paper presented at the 229th ACS National Meeting (San Diego, CA 3/13-17/2005).

AB - A new processing method, ice-templating method, for the preparation of ordered macroporous materials using sol-gel transformation is developed. When precursor hydrogels are unidirectionally frozen, pseudosteady state growth of ice crystals occurred inside their matrices. Such ice crystals were regularly aligned parallel to the freezing direction, and played the role of a template. A microhoneycomb morphology was formed at this freezing stage. After removal of the ice crystals by thawing and drying, organic/inorganic gel microhoneycombs with micro/mesopores inside their honeycomb walls could be obtained. Carbon cryogel microhoneycombs (CMH) preparation succeeded by applying this new method to resorcinol-formaldehyde (RF) hydrogels. The relationship between the preparation conditions and the morphology of the resulting RF cryogels is compared, and the preparation of fine CMH is presented. This is an abstract of a paper presented at the 229th ACS National Meeting (San Diego, CA 3/13-17/2005).

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Y2 - 13 March 2005 through 17 March 2005

ER -

Controlling the hierarchical pore structure of resorcinol-formaldehyde carbon cryogel microhoneycombs

Abstract

ASJC Scopus subject areas

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