Sweet aqueous solution for electrochemical synthesis of polypyrrole part 1B: On copper and its alloys

被引：32

作者：

Bazzaoui, A.

Martins, J. I.

Bazzaoui, E. A.

Martins, L.

Machnikova, E.

机构：

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

[2] Univ Mohammed 1, Dept Chim, Fac Sci, Oujda 60000, Morocco

[3] Ctr Rech Publ Sante, Luxembourg, Luxembourg

[4] Acad Sci Czech Republ, J Heyrovsky Inst Phys Chem, Prague 18223 8, Czech Republic

来源：

ELECTROCHIMICA ACTA | 2007年 / 52卷 / 11期

关键词：

polypyrrole; copper; brass; saccharinate; corrosion; aqueous medium;

D O I：

10.1016/j.electacta.2006.10.017

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 [应用化学];

摘要：

The electrochemical synthesis of polypyrrole (PPy) on copper and brass has been successfully achieved in sodium saccharinate and pyrrole aqueous medium. The synthesized coating under several electrochemical techniques such as cyclic voltammetry, galvanostatic and potentiostatic is homogeneous and adherent. PPy has been characterized by SEM, XPS, IR and Raman spectroscopy and its quality has been confirmed. The doping level obtained from N 1s XPS signal of the oxidized PPy depends on the electrochemical technique used to produce the film. The corrosion performance of PPy/copper and PPy/brass has been evaluated in 3% NaCl and 0.1 M HCl using linear polarization and electrochemical impedance spectroscopy. The results show that PPy coating electrodeposited from sodium saccharinate exhibits significant corrosion protection properties. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：3568 / 3581

页数：14

共 57 条

[1]

ABDELHALEEM SM, IN PRESS J ALLOYS CO

[2]

SURFACE ENHANCED RAMAN-SCATTERING AND IMPEDANCE STUDIES ON THE INHIBITION OF COPPER CORROSION IN SULFATE-SOLUTIONS BY 5-SUBSTITUTED BENZOTRIAZOLES [J].