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Conversion of uniform colloidal Cu2O spheres to copper in polyols

Published online by Cambridge University Press:  06 January 2012

Zorica Crnjak Orel ,
Egon Matijević  and
Dan V. Goia
Zorica Crnjak Orel
Affiliation:
Clarkson University, Center for Advanced Materials Processing, Potsdam, New York 13599
Egon Matijević
Affiliation:
Clarkson University, Center for Advanced Materials Processing, Potsdam, New York 13599
Dan V. Goia
Affiliation:
Clarkson University, Center for Advanced Materials Processing, Potsdam, New York 13599
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Abstract

Colloidal copper particles with a high degree of crystallinity were obtained by heating solutions of copper(II) acetate in ethylene glycol (EG) and tetraethylene glycol (TEG). The formation mechanism of copper particles involved first the formation of sparingly soluble nano-sized copper(I) oxide, which aggregated into uniform spheres. On prolonged heating the Cu2O particles were reduced to nano-sized copper crystallites followed by their sintering to colloidal metal. The conversion of the copper(I) oxide to metallic copper proceeds uniformly within the body of each particle.

Type
Articles
Information
Journal of Materials Research , Volume 18 , Issue 4 , April 2003 , pp. 1017 - 1022
Copyright
Copyright © Materials Research Society 2003

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