Electrosynthesis of Polyaniline Film on AA 7075 Alloy and Its Corrosion Protection Ability

被引：20

作者：

Kamaraj, K. ^{[1
]}

Karpakam, V. ^{[1
]}

Sathiyanarayanan, S. ^{[1
]}

Venkatachari, G. ^{[1
]}

机构：

[1] Cent Electrochem Res Inst, Karaikkudi 630006, Tamil Nadu, India

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2010年 / 157卷 / 03期

关键词：

aluminium alloys; corrosion protection; electrochemical impedance spectroscopy; electrodeposition; polymer films; X-ray photoelectron spectra; THIN CERIUM OVERLAYERS; ALUMINUM-ALLOYS; CONVERSION COATINGS; CONDUCTING POLYMERS; COMPOSITES; OXIDATION; ELECTRODE; POLYPYRROLE; ANTICORROSION; DEPOSITION;

D O I：

10.1149/1.3272637

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Polyaniline has been electrodeposited on an AA 7075 alloy by a potentiostatic method, and its corrosion protection ability has been studied by Tafel polarization and electrochemical impedance spectroscopic techniques in 1% NaCl. A pure polyaniline film protects the aluminum alloy up to 70%. However, the corrosion resistance property of the polyaniline film has substantially increased to 90% by post-treatment in a cerium salt solution. X-ray photoelectron spectra studies have shown that the film formed due to the post-treatment of polyaniline with the AA 7075 alloy in the cerium salt solution is composed of both Ce(3+) and Ce(4+) oxides.

引用

页码：C102 / C109

页数：8

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