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Uniform spherical colloidal palladium particles by reduction of solid complex precursors

Published online by Cambridge University Press:  03 March 2011

Stanka Kratohvil  and
Egon Matijević
Stanka Kratohvil
Affiliation:
Center for Advanced Materials Processing, Clarkson University, Box 5814, Potsdam, New York 13699-5814
Egon Matijević
Affiliation:
Center for Advanced Materials Processing, Clarkson University, Box 5814, Potsdam, New York 13699-5814
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Abstract

A procedure is described that yields uniform spherical colloidal palladium particles of modal diameters ranging between 0.1 and 0.7 μm. The process consists of two stages. First a monodispersed solid composite precursor is precipitated in solutions containing PdCl2, urea, and a nonionic surfactant. The resulting particles are then reduced in aqueous media, either by hydrazine or ascorbic acid in the presence of a protective agent. No change in particle shape occurred during the transformation to pure metals.

Type
Articles
Information
Journal of Materials Research , Volume 9 , Issue 9 , September 1994 , pp. 2404 - 2410
Copyright
Copyright © Materials Research Society 1994

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References

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