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Synthesis and formation of silica aerogel particles by a novel sol-gel route in supercritical carbon dioxide

Authors :
Sui, Ruohong
Rizkalla, Amin S.
Charpentier, Paul A.
Source :
Journal of Physical Chemistry B. August 12, 2004, Vol. 108 Issue 32, p11886, 7 p.
Publication Year :
2004

Abstract

A new method to obtain silica aerogel particles is proposed using acetic acid as the condensation agent for silicon alkoxides in supercritical carbon dioxide (scCO2). The mechanism of silica aerogel formation in scCO2 using in situ analysis techniques is determined.

Details

Language :
English
ISSN :
15206106
Volume :
108
Issue :
32
Database :
Gale General OneFile
Journal :
Journal of Physical Chemistry B
Publication Type :
Academic Journal
Accession number :
edsgcl.126044367