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 journalConference articlepeer-review


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 languageEnglish
Pages (from-to)FUEL-5
JournalACS National Meeting Book of Abstracts
Issue number1
Publication statusPublished - 2005
Event229th ACS National Meeting - San Diego, CA., United States
Duration: 2005 Mar 132005 Mar 17


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