Hostname: page-component-77c89778f8-9q27g Total loading time: 0 Render date: 2024-07-22T22:24:41.924Z Has data issue: false hasContentIssue false
  • English
  • Français

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
Get access

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1 Brinker, C.J. and Scherer, G.W. in Ultrastructure Processing of Ceramics. Glasses, and Composites, edited by Hench, L. L. and Ulrich, D. R. (Wiley, New York, 1984) pp. 43-59.Google Scholar
2 Brinker, C.J. and Scherer, G.W., Sol-Gel Science (Academic Press, New York, 1990) p. 97.Google Scholar
3 Klein, L.C., Ann. Rev. Mater. Sci. 15, 227-248 (1985).Google Scholar
4 Buckley, A.M. and Greenblatt, M., J. Non-Cryst. Solids 146, 97 (1992).Google Scholar
5 Leyden, D.E. and Luttrell, G.H., Anal. Chem. 47, 1612 (1975).Google Scholar
6 Schubert, U., Breitscheidel, B., Buhler, H., Egger, C., and Urbaniak, W. in Better Ceramics Through Chemistry V. edited by Smith, M.J. H.-, Klemperer, W.G., Brinker, C.J. (Mater. Res. Soc. Proc. 271, Pittsburgh, PA, 1992) pp. 621-632.Google Scholar
7 Rousseau, F., Duan, Z., Smith, M. J. H.-, and Datye, A., ibid., pp. 633-638.Google Scholar
8 Leyden, D.E. in Silylated Surfaces, edited by Leyden, D.E. and Collins, W.T. (Gordon and Breach, New York, 1980), pp. 321-332.Google Scholar
9 Tewari, P.H., Hunt, A.J., and Lofftus, K.D., Mater. Lett. 3, 363 (1985).Google Scholar
10 Hunt, A.J. and Berdahl, P. in Better Ceramics Through Chemistry, edited by Brinker, C.J., Clark, D.E., and Ulrich, D.R. (North-Holland, New York, 1984) pp. 275-280.Google Scholar
11 Plueddemann, E.P. in Silylated Surfaces, edited by Leyden, D.E. and Collins, W.T. (Gordon and Breach, New York, 1980), pp. 31-53.Google Scholar
12 Her, R.K., The Chemistry of Silica (Wiley, New York, 1979) p. 209.Google Scholar
13 Russo, R.E. and Hunt, A.J., J. Non-Cryst. Solids 86, 219 (1986).Google Scholar