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Sol-Gel Processing Using Aminofunctional Silanes

Published online by Cambridge University Press:  21 February 2011

Wanqing Cao  and
Arlon J. Hunt
Wanqing Cao
Affiliation:
Energy and Environment Division, Lawrence Berkeley Laboratory, University of California, Berkeley, CA 94720
Arlon J. Hunt
Affiliation:
Energy and Environment Division, Lawrence Berkeley Laboratory, University of California, Berkeley, CA 94720
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Abstract

Clear gels have been made from TEOS and the aminofunctional silane under acid-catalyzed conditions and light scattering of the gels has been related to pH and the concentration of fluoride ions in the sol as well as the amount of the aminosilane used. We have succeeded in preparing a series of gels containing Ni2+ or Cu2+ ions immobilized by chelation either before or after the gel formation. Aerogels made from these gels in particular, doped by the method of impregnation, have had a homogeneous microstructure on the scale of only a few nanometers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 346: Symposium N – Better Ceramics Through Chemistry VI , 1994 , 631
Copyright
Copyright © Materials Research Society 1998

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References

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