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Electrodeposition of Metals on Conductive Polymer Films

Published online by Cambridge University Press:  10 February 2011

Maria Hepel ,
Laura Adams  and
Cynthia Rice-Belrose
Maria Hepel
Affiliation:
Department of Chemistry, State University of New York at Potsdam, Potsdam, New York 13676
Laura Adams
Affiliation:
Department of Chemistry, State University of New York at Potsdam, Potsdam, New York 13676
Cynthia Rice-Belrose
Affiliation:
Department of Chemistry, State University of New York at Potsdam, Potsdam, New York 13676
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Abstract

The electrodeposition of copper on composite conductive polymer polypyrrole/polystyrenesulfonate PPy(PSS) has been studied. The morphology of copper deposits was investigated in the presence of thiourea and other additives. It has been found that in the presence of thiourea in the solution, the rate of copper deposition on a PPy(PSS) substrate is slightly inhibited but the rate of copper stripping is faster than in its absence. The Electrochemical Quartz Crystal Microbalance (EQCM) technique allowed us to simultaneously monitor voltamperometric and resonance frequency vs. potential or time characteristics. The amount of electrodeposited copper was controlled by monitoring the EQCM resonant frequency. Composite PPy(PSS) films functioning as cation-exchange membranes were used as substrate materials for metal deposition. They allowed us to electrodeposit copper not only on the surface of the conductive polymer but also inside the polymer matrix. The size of copper nanocrystals formed inside the polymer was controlled by the applied electrode potential. Copper crystals as small as 20 nm were detected with Transmission Electron Microscopy (TEM).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 451: Symposium P – Electrochemical Synthesis and Modification , 1996 , 507
Copyright
Copyright © Materials Research Society 1997

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References

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