Prepararion of Ni/SiO2 Composite Aerogel by Sol-Gel Process of Ni-containing Tetraethyl Orthosilicate

Journal of Inorganic Materials

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Prepararion of Ni/SiO₂ Composite Aerogel by Sol-Gel Process of Ni-containing Tetraethyl Orthosilicate

CHEN Yi-Min; XIE Kai; PAN Yi; XU Jing; ZHAO Xun; XIAO Zheng-Quan

Department of Materials Eng. Applied Chemistry; National Universityof Defense Technology Changsha 410075 China

Received:1997-11-03 Revised:1997-12-15 Published:1998-10-20 Online:1998-10-20

Abstract

Abstract: Ni-rich Ni/SiO₂ composite aerogels in which weight percentage of Ni could reach 60% werefirstly prepared by sol-gel process of Ni-containing tetraethyl orthosilicate (NiTEOS). The influenceof H₂O, catalyst, solvent and compostcomposition of Ni-containing tetraethyl orthosilicate on the sol-gelprocess was discussed. The specific sufrace areas of Ni/SiO₂ composite aerogels are in the rangeof 420~650m²/g.

Key words: sol-gel processing, composite aerogel, supercritical drying, Ni-containing TEOS, TEOS

CLC Number:

TM285

CHEN Yi-Min,XIE Kai,PAN Yi,XU Jing,ZHAO Xun,XIAO Zheng-Quan. Prepararion of Ni/SiO₂ Composite Aerogel by Sol-Gel Process of Ni-containing Tetraethyl Orthosilicate[J]. Journal of Inorganic Materials.

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Prepararion of Ni/SiO₂ Composite Aerogel by Sol-Gel Process of Ni-containing Tetraethyl Orthosilicate

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