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Preparation and properties of uniform mixed colloidal particles; VI, copper(II)–yttrium(III), and copper(II)–lanthanum(III) compounds

Published online by Cambridge University Press:  31 January 2011

François Ribot ,
Stanka Kratohvil  and
Egon Matijevié
François Ribot
Affiliation:
Department of Chemistry, Clarkson University, Potsdam, New York 13676
Stanka Kratohvil
Affiliation:
Department of Chemistry, Clarkson University, Potsdam, New York 13676
Egon Matijevié
Affiliation:
Department of Chemistry, Clarkson University, Potsdam, New York 13676
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Abstract

Uniform spherical colloidal particles of mixed internal composition were obtained by aging at 90 °C solutions containing Cu(NO3)2 + Y(NO3)3 and Cu(NO3)2 + La(NO3)3, respectively, in the presence of urea. The molar ratio of metal ions in the solids precipitated from a given solution varied with the reaction time. After sufficiently long aging, this ratio corresponded closely to that in solutions in which the particles were generated. The original precipitates consisted of basic carbonates, which on calcination converted to mixed oxides of defined composition.

Type
Articles
Information
Journal of Materials Research , Volume 4 , Issue 5 , October 1989 , pp. 1123 - 1131
Copyright
Copyright © Materials Research Society 1989

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References

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