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Spherical iron oxide particles synthesized by an aerosol technique

Published online by Cambridge University Press:  03 March 2011

M.V. Cabañas ,
M. Vallet-Regí ,
M. Labeau  and
J.M. González-Calbet
M.V. Cabañas
Affiliation:
Departamento de Química Inorgánica y Bioinorgánica, Facultad de Farmacia, Universidad Complutense, 28040-Madrid, Spain
M. Vallet-Regí*
Affiliation:
Departamento de Química Inorgínica y Bioinorgánica, Facultad de Farmacia, Universidad Complutense, 28040-Madrid, and Instituto de Magnetismo Aplicado, Las Rozas, 28230-Madrid, Spain
M. Labeau
Affiliation:
Laboratoire des Materiaux et du Génie Physique, URA 1109, INPG, 38402-St. Martin d'Hères, France
J.M. González-Calbet
Affiliation:
Instituto de Magnetismo Aplicado, Las Rozas, 28230-Madrid, and Departamento de Química Inorgánica, Facultad de Químicas, Universidad Complutense, 28040-Madrid, Spain
*
a)Author to whom correspondence should be addressed.
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Abstract

Spherical particles of several iron oxides have been obtained by pyrolysis of an aerosol generated by ultrahigh frequency spraying of a solution. Two different precursor solutions were used to produce the aerosol: Fe(NO3)3 · 9H2O and FeC6H5O7 · 4H2O. The iron nitrate decomposition leads to the formation of α-Fe2O3, while the organic precursor pyrolysis leads to magnetic particles of either γ–Fe2O3 or Fe3O4. Structural phase, particle size, texture, and homogeneity of the products so obtained can be controlled as a function of some synthesis conditions such as precursor solution, temperature, solution concentration, and surrounding atmosphere.

Type
Articles
Information
Journal of Materials Research , Volume 8 , Issue 10 , October 1993 , pp. 2694 - 2701
Copyright
Copyright © Materials Research Society 1993

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References

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