Sweet aqueous solution for electrochemical synthesis of polypyrrole Part 2. On ferrous metals

被引：37

作者：

Bazzaoui, M.

Martins, J. I.

Costa, S. C.

Bazzaoui, E. A.

Reis, T. C.

Martins, L.

机构：

[1] Univ Porto, Dept Engn Quim, Fac Engn, P-4200465 Oporto, Portugal

[2] Univ Mohammed Ier, Dept Chim, Fac Sci, Oujda 60000, Morocco

[3] Ctr Rech Publ Sante, Luxembourg, Luxembourg

来源：

ELECTROCHIMICA ACTA | 2006年 / 51卷 / 21期

关键词：

polypyrrole; iron; sodium saccharinate; corrosion; counterion;

D O I：

10.1016/j.electacta.2006.01.002

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical synthesis of polypyrrole on iron has been fruitfully achieved in aqueous medium of sodium saccharinate and pyrrole. The obtained coating under these conditions has been reached with cyclic voltammetry and chronomethods. The applied current density has a great effect on the thickness of PPy electrodeposited on iron electrodes. The characterization techniques show a good homogeneity of the PPy coating. The corrosion behaviour of PPy/Fe was investigated in sodium chloride by linear polarization, electrochemical impedance spectroscopy, and weight loss. The results show that PPy coating electrodeposited could provide a good protection against corrosion. (c) 2006 Elsevier Ltd. All rights reserved.

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页码：4516 / 4527

页数：12

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