Preparation of porous particles and films consisting of nanograins and nanosheets of tin dioxide

Hiroaki Imai; Hirotoshi Ohgi; Takahiro Maeda; Shinobu Fujihara

doi:10.14853/pcersj.2004F.0.294.0

17th Fall Meeting of The Ceramic Society of Japan

Session ID : 2M05

DOI https://doi.org/10.14853/pcersj.2004F.0.294.0

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Host: The Ceramic Society of Japan

Preparation of porous particles and films consisting of nanograins and nanosheets of tin dioxide

*Hiroaki Imai, Hirotoshi Ohgi, Takahiro Maeda, Shinobu Fujihara

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Keywords: tin dioxide, porous material, sensor, transparent conductor, solution process

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Abstract

Porous particles consisting of nanograins and nanosheets of crystalline tin dioxide were prepared from aqueous solutions of tin (II) at 60 degree C. The shapes of the primary and secondary particles were controlled by adjusting the concentration and pH. The highest value of specific surface area, 240 m²/g, was obtained by subsequent hydrothermal treatment. Addition of urea into the solutions promoted the formation of porous films of tin dioxide on a glass substrate.

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