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Origin of color in aerosol-derived vanadium-doped zirconia pigments

Published online by Cambridge University Press:  31 January 2011

P. Tartaj ,
C. J. Serna ,
J. Soria  and
M. Ocaña
P. Tartaj
Affiliation:
Instituto de Ciencia de Materiales de Madrid, C. S. I. C., Cantoblanco, 28049 Madrid, Spain
C. J. Serna
Affiliation:
Instituto de Ciencia de Materiales de Madrid, C. S. I. C., Cantoblanco, 28049 Madrid, Spain
J. Soria
Affiliation:
Instituto de Catálisis y Petroleoquímica, C. S. I. C., Campus Universitario de Cantoblanco, 28049 Madrid, Spain
M. Ocaña
Affiliation:
Instituto de Ciencia de Materiales de Sevilla, C. S. I. C.-UNSE, Améico Vespucio s/n, 48092-Sevilla, Spain
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Extract

The preparation of vanadium-zirconia yellow pigments from amorphous spherical V–ZrO2 particles obtained by the hydrolysis of liquid aerosols consisting of a mixture of vanadium (V) oxychloride and zirconium n-propoxide is reported. The composition of the amorphous precursors (V/Zr ratio) and the heating temperature were systematically varied to determine their influence on the optical properties of the pigments. The origin of the yellow color of the pigments was found to be mainly due to the presence of V2O5 in the outer layers of the zirconia grains. A small fraction (∼15%) of the total vanadium content was found as vanadium (IV) forming a solid solution with the monoclinic zirconia lattice.

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Articles
Information
Journal of Materials Research , Volume 13 , Issue 2 , February 1998 , pp. 413 - 420
Copyright
Copyright © Materials Research Society 1998

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