Release mechanism of electrodeposited polypyrrole doped with corrosion inhibitor anions

被引：0
作者：
Grazyna Paliwoda-Porebska
Michael Rohwerder
Martin Stratmann
Ursula Rammelt
Le Minh Duc
Waldfried Plieth
机构：
[1] Max-Planck-Institut fuer Eisenforschung,Department of Chemistry, Institute of Physical Chemistry and Electrochemistry
[2] Dresden University of Technology,undefined
来源：
Journal of Solid State Electrochemistry | 2006年 / 10卷
关键词：
Polypyrrole; Corrosion inhibitors; Release system; Scanning Kelvin probe (SKP); Electrochemical impedance spectroscopy (EIS);
D O I：
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中图分类号：
学科分类号：
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.
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页码：730 / 736
页数：6
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