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Crystallization of nanosized titania particles prepared by the sol-gel process

Published online by Cambridge University Press:  03 March 2011

E. Haro-Poniatowski ,
R. Rodríguez-Talavera ,
Heredia M. de la Cruz ,
O. Cano-Corona  and
R. Arroyo-Murillo
E. Haro-Poniatowski*
Affiliation:
Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa, Apdo. Postal 55–534, México, D.F. 09340
R. Rodríguez-Talavera
Affiliation:
Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa, Apdo. Postal 55–534, México, D.F. 09340
Heredia M. de la Cruz
Affiliation:
Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa, Apdo. Postal 55–534, México, D.F. 09340
O. Cano-Corona
Affiliation:
Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa, Apdo. Postal 55–534, México, D.F. 09340
R. Arroyo-Murillo
Affiliation:
Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, Apdo. Postal 55–534, Mexico, D.F. 09340
*
a)Author to whom the correspondence should be addressed.
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Abstract

Sols of titania were obtained by the sol-gel method and their size profile was followed by dynamical light scattering. In the early stages of the reaction an unstable behavior was detected. After this unstable regime the particle size reaches a steady state where the sols have a constant size while increasing in number. Once the sol concentration reaches its overlap value, the gelation regime takes place. For samples prepared in this way Raman spectra and x-ray diffractometry were used to characterize the kinetics of crystallization of the material.

Type
Articles
Information
Journal of Materials Research , Volume 9 , Issue 8 , August 1994 , pp. 2102 - 2108
Copyright
Copyright © Materials Research Society 1994

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References

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