Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-29T07:30:30.224Z Has data issue: false hasContentIssue false
  • English
  • Français

The Influence of Cations on Growth Kinetics of Silica Aggregates

Published online by Cambridge University Press:  28 February 2011

Theo P.M. Beelen ,
Peter W.J.G. Wijnen ,
Kees P.J. Rummens  and
Rutger A. Van Santen
Theo P.M. Beelen
Affiliation:
Lab. Inorganic Chemistry and Catalysis, Eindhoven University of Technology, P.O.Box 513, 5600 MB EINDHOVEN, The Netherlands.
Peter W.J.G. Wijnen
Affiliation:
Lab. Inorganic Chemistry and Catalysis, Eindhoven University of Technology, P.O.Box 513, 5600 MB EINDHOVEN, The Netherlands.
Kees P.J. Rummens
Affiliation:
Lab. Inorganic Chemistry and Catalysis, Eindhoven University of Technology, P.O.Box 513, 5600 MB EINDHOVEN, The Netherlands.
Rutger A. Van Santen
Affiliation:
Lab. Inorganic Chemistry and Catalysis, Eindhoven University of Technology, P.O.Box 513, 5600 MB EINDHOVEN, The Netherlands.
Get access

Abstract

Silica gels are prepared by acidification (pH = 2 − 4) of water glass. SAXS measurements show that the gel consists of fractal aggregates (D = 2.2). Although the fractal dimension is not influenced by addition of cations, Al3+ and Mg2+ retard the growth of the fractal aggregates, while TMA+ has a promoting effect.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 180: Symposium A – Better Ceramics Through Chemistry IV , 1990 , 273
Copyright
Copyright © Materials Research Society 1990

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. Iler, R.K., The Chemistry of Silica (J.Wiley & Sons, New York, 1979).Google Scholar
2. McCormick, A.V., Bell, A.T. and Radke, C.J., J.Phys. Chem. 93, 1733, (1989).Google Scholar
3. Knight, C.T.G., J.Chem.Soc. Dalton 1988, 1457–1460.Google Scholar
4. Wijnen, P.W.J.G., Beelen, T.P.M., de Haan, J.W., Rummens, C.P.J., van de Ven, L.J.M. and van Santen, R.A., J.Non-Cryst.Solids 109, 85 (1989).Google Scholar
5. Martin, J.E. and Hurd, A.J., J.Appl.Cryst. 20, 61 (1987).Google Scholar
6. Teixeira, J. in On Growth and Form, edited by Stanley, H.E. and Ostrowsky, N. (Martinus Nijhoff, Dordrecht, 1986), p.145.Google Scholar
7. Kjems, J.K., Freltoft, T., Richter, D. and Sinha, S.K., Physica 136 B, 285 (1986).Google Scholar
8. Schaefer, D.W., Martin, J.E., Wiltzius, P. and Cannel, D.S., Phys.Rev.Letters 52, 2371 (1984).Google Scholar
9. Vacher, R., Woignier, T., Pelous, J. and Courtens, E., Phys.Rev.B 37, 6500 (1988).Google Scholar
10. Meakin, P., Adv.Coll.Interf.Sc. 28, 249 (1988).Google Scholar
11. Jullien, R. and Botet, R., Agaregration and Fractal Aggregates (World Scientific, Singapore, 1987).Google Scholar
12. Beelen, T.P.M., Wijnen, P.W.J.G., Vonk, C.G. and van Santen, R.A., Cat.Letters 3, 209 (1989).Google Scholar
13. Craievich, A., dos Santos, D.I., Aegerter, M., Lours, T. and Zarzycki, J., J.Non-Cryst.Solids 100, 424 (1988).Google Scholar
14. Dietler, G., Aubert, C., Cannell, D.S. and Wiltzius, P., Phys.Rev.Letters 57, 3117 (1986).Google Scholar
15. Cabane, B., Dubois, M. and Duplessix, R., J.Physique 48, 2131 (1987)Google Scholar