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The Influence of Cations on Growth Kinetics of Silica Aggregates

  • Theo P.M. Beelen (a1), Peter W.J.G. Wijnen (a1), Kees P.J. Rummens (a1) and Rutger A. Van Santen (a1)

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.

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

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