Release mechanism of electrodeposited polypyrrole doped with corrosion inhibitor anions

被引：62

作者：

Paliwoda-Porebska, Grazyna

Rohwerder, Michael

Stratmann, Martin

Rammelt, Ursula

Duc, Le Minh

Plieth, Waldfried

机构：

[1] Tech Univ Dresden, Inst Phys Chem & Electrochem, Dept Chem, D-01062 Dresden, Germany

[2] Max Planck Inst Eisenforsch GmbH, D-4000 Dusseldorf, Germany

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2006年 / 10卷 / 09期

关键词：

polypyrrole; corrosion inhibitors; release system; scanning Kelvin probe (SKP); electrochemical impedance spectroscopy (EIS);

D O I：

10.1007/s10008-006-0118-y

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Scanning Kelvin probe and electrochemical impedance spectroscopy were used to study the release behaviour of inhibitor anions doped in polypyrrole film (e.g. molybdate, 3-nitro salicylate). The polypyrrole coatings were formed on mild steel and zinc substrates in aqueous solution. It was shown that the release behaviour of the molybdate and 3-nitro salicylate anions depends on the size of cations in the electrolyte. The delamination is determined with the migration and incorporation of small cations.

引用

收藏

页码：730 / 736

页数：7

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