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Texture evolution of SnO2 synthesized by pyrolysis of an aerosol

Published online by Cambridge University Press:  18 February 2016

M. Vallet-Regí ,
V. Ragel ,
J. Román ,
J. L. Martínez ,
M. Labeau  and
J.M. González-Calbet
M. Vallet-Regí
Affiliation:
Departamento de Química Inorgánica y Bioinorgánica, Universidad Complutense, 28040-Madrid and Instituto de Magnetismo Aplicado, RENFE-UCM, Apdo. 155, Las Rozas 28230-Madrid, Spain
V. Ragel
Affiliation:
Departamento de Química Inorgánica y Bioinorgánica, Universidad Complutense, 28040-Madrid, Spain
J. Román
Affiliation:
Departamento de Química Inorgánica y Bioinorgánica, Universidad Complutense, 28040-Madrid, Spain
J. L. Martínez
Affiliation:
Departamento de Química Inorgánica y Bioinorgánica, Universidad Complutense, 28040-Madrid, Spain
M. Labeau
Affiliation:
Laboratoire des Materiaux et du Genie Physique, URA 1109 CNRS, INPG, BP46, 38402 Saint Martin d'Heres, France
J.M. González-Calbet
Affiliation:
Instituto de Magnetismo Aplicado, RENFE-UCM, Apdo. 155, Las Rozas 28230-Madrid, and Departamento de Química Inorgánica, Universidad Complutense, 28040-Madrid, Spain
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Extract

SnO2 hollow spherical particles have been prepared by pyrolysis of an aerosol produced by ultrahigh frequency of a SnCl2 precursor solution. The spheres obtained were found to be amorphous when the pyrolysis temperature is <500 °C, but they crystallize to cassiterite at temperatures higher than 600 °C. The spherical shape is kept when as-received samples are annealed at temperatures ranging between 500 and 1100°CC, but they are polycrystalline, the crystallite size being controlled as a function of the annealing temperature.

Type
Research Article
Information
Journal of Materials Research , Volume 8 , Issue 1 , January 1993 , pp. 138 - 144
Copyright
Copyright © Materials Research Society 1993

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