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Electrochemical synthesis and redox behaviour of polypyrrole coatings on copper in salicylate aqueous solution

In this work, polypyrrole (PPy) coatings have been successfully electrodeposited on copper substrates from aqueous salicylate solutions. Homogenous and uniform films can be grown under galvanostatic or potentiostatic control without noticeable substrate dissolution. The redox behaviour obtained for...

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Bibliographic Details
Published in:Electrochimica acta 2003-07, Vol.48 (17), p.2523-2529
Main Authors: Cascalheira, A.C., Aeiyach, S., Lacaze, P.C., Abrantes, L.M.
Format: Article
Language:English
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Summary:In this work, polypyrrole (PPy) coatings have been successfully electrodeposited on copper substrates from aqueous salicylate solutions. Homogenous and uniform films can be grown under galvanostatic or potentiostatic control without noticeable substrate dissolution. The redox behaviour obtained for the films is similar to that displayed by PPy grown under the same conditions on noble metals. Strong adherence to copper is observed as far as PPy is in its oxidised state but it is lost when the system is subjected to potentials lower than −0.5 V versus saturated calomel electrode (SCE).
ISSN:0013-4686
1873-3859
DOI:10.1016/S0013-4686(03)00295-0