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Microstructure of Al2O3 Xerogels and Aerogels from Aluminum-tri-sec-Butoxide Modified with Ethylacetoacetate

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Title: Microstructure of Al2O3 Xerogels and Aerogels from Aluminum-tri-sec-Butoxide Modified with Ethylacetoacetate
Other Titles: アセト酢酸エチルによって化学修飾されたアルミニウムトリセカンダリーブトキシドから作製したAl2O3キセロゲル及びエアロゲルの細孔構造
Authors: TADANAGA, Kiyoharu1 Browse this author →KAKEN DB
IWAMI, Tomoaki2 Browse this author
MINAMI, Tsutomu3 Browse this author
TOHGE, Noboru4 Browse this author
Authors(alt): 忠永, 清治1
岩見, 知明2
南, 努3
峠, 登4
Keywords: Chemical modification
Sol-gel method
Specific surface area
Pore size distribution
Issue Date: 1-Jun-1995
Publisher: Ceramic Society of Japan
Journal Title: Journal of the Ceramic Society of Japan
Journal Title(alt): 日本セラミックス協会学術論文誌
Volume: 103
Issue: 1198
Start Page: 582
End Page: 585
Publisher DOI: 10.2109/jcersj.103.582
Abstract: Microstrucutre of Al2O3 xerogels and aerogels prepared from aluminum-tri-sec-butoxide (Al (O-sec-Bu)3) modified with ethylacetoacetate (EAcAc) was investigated for controlling the microstructure of Al2O3. The specific surface area and the pore volume of heat-treated xerogels decreased with an increase in the EAcAc/Al (O-sec-Bu)3 molar ratio, whereas the size of pores was not affected by the ratio. The specific surface area of aerogels decreased monotonously with an increase in the heat-treatment temperature up to 1000°C and was larger than that of xerogels in the whole temperature range of heat treatment, while that of xerogels decreased with increasing temperature due to sintering and drastically decreased at 1000°C.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 忠永 清治

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