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

被引:88
作者
Cascalheira, AC
Aeiyach, S
Lacaze, PC
Abrantes, LM
机构
[1] Univ Lisbon, Fac Ciencias, Inst Ciencia Aplicada & Tecnol, Dept Quim & Bioquim,Unidade Proc Electroquim, P-1749016 Lisbon, Portugal
[2] Univ Paris 07, CNRS, Lab Interfaces Traitements Org & Dynam Syst, ITODYS,UMR 7086, F-75005 Paris, France
关键词
electropolymerisation; polypyrrole coated copper; salicylate solutions; polymer adherence;
D O I
10.1016/S0013-4686(03)00295-0
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
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). (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2523 / 2529
页数:7
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