Control of Pore Diameter of Porous Silica by Sol-Gel Coating

Yoshiro MORIYA; Hidenori SHIMODA; Ryoji HINO

doi:10.2109/jcersj.103.1201

Journal of the Ceramic Society of Japan

Online ISSN : 1882-1022
Print ISSN : 0914-5400
ISSN-L : 0914-5400

Control of Pore Diameter of Porous Silica by Sol-Gel Coating

Yoshiro MORIYA, Hidenori SHIMODA, Ryoji HINO

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Keywords: Control of pore diameter, Porous silica, 80SiO₂⋅20TiO₂, Sol-gel coating

JOURNAL FREE ACCESS

1995 Volume 103 Issue 1203 Pages 1201-1204

DOI https://doi.org/10.2109/jcersj.103.1201

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Abstract

Oxide films of nominal composition of 80SiO₂⋅20TiO₂ were coated using partially hydrolyzed complex alkoxide solutions on the porous silica which had mesopores of about 3 nm width and narrow pore diameter distribution (PDD). After coating, the larger pores present in the porous silica decreased and the PDD became narrower. No micropores were observed even after coating. No apparent effect on PDD was observed by the repetition of the coating procedure.

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