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Synthesis, Characterization and Properties of Silver Aggregates

Published online by Cambridge University Press:  28 February 2011

P. Licinio
Affiliation:
Departamento de Física, Universidade Federal de Minas Gerais - CP. 702 - 30161 Belo Horizonte - MG - Brazil.
A. V. Ferreira
Affiliation:
Departamento de Física, Universidade Federal de Minas Gerais - CP. 702 - 30161 Belo Horizonte - MG - Brazil.
A. S. de Albuquerque
Affiliation:
Departamento de Física, Universidade Federal de Minas Gerais - CP. 702 - 30161 Belo Horizonte - MG - Brazil.
N. L. Speziali
Affiliation:
Departamento de Física, Universidade Federal de Minas Gerais - CP. 702 - 30161 Belo Horizonte - MG - Brazil.
W. N. Rodrigues
Affiliation:
Departamento de Física, Universidade Federal de Minas Gerais - CP. 702 - 30161 Belo Horizonte - MG - Brazil.
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Abstract

Silver aggregates find their technological applications in electricity conducting cements and as catalysts in biomedical sciences. We have developped a method for synthesis of colloidal silver aggregates, based in redox reactions. Aggregate size and structure are strongly influenced by preparation physico-chemical conditions. We have investigated the pH influence over the growth mechanism through dynamic and static light scattering techniques. We introduce here an analysis of the sedimentation rate from which the aggregation regime can also be inferred.

Type
Research Article
Copyright
Copyright © Materials Research Society 1991

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References

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