The Effect of Catalysts on TEOS Hydrolysis-Condensation Mechanism

Journal of Inorganic Materials

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The Effect of Catalysts on TEOS Hydrolysis-Condensation Mechanism

LIN Jian

Institute of Materials Science and Engineering; Tongji University Shanghai 2O0433 China

Received:1996-04-11 Revised:1996-05-09 Published:1997-06-20 Online:1997-06-20

Abstract

Abstract: SiO₂ gels were prepared by Sol-Gel processing, the influence of catalysts on the hydrolysiscondensation and structure of the gel was studied. The radius of negative ions determines thehydrolysis-condensation mechanism. Different catalysis ways and catalyst concertration, pH value,water content have great influence on the gelation time and the structure of SiO₂ gel.

Key words: sol-gel processing, SiO₂, TEOS, hydrolysis- condensation mechanism

LIN Jian. The Effect of Catalysts on TEOS Hydrolysis-Condensation Mechanism[J]. Journal of Inorganic Materials.

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The Effect of Catalysts on TEOS Hydrolysis-Condensation Mechanism

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