Electrochemical study of polypyrrole/PW12O3-40 coatings on carbon steel electrodes as protection against corrosion in chloride aqueous solutions

被引：31

作者：

Bonastre, J.

Garces, P.

Huerta, F.

Quijada, C.

Andion, L. G.

Cases, F.

机构：

[1] Univ Politecn Valencia, Dept Ingn Text & Papelera, EPS Alcoy, Alcoy 03801, Spain

[2] Univ Alicante, Dept Ingn Construcc, OP Inf Urbana, E-03080 Alicante, Spain

来源：

CORROSION SCIENCE | 2006年 / 48卷 / 05期

关键词：

mild steel; polymer coating; oxidation; cyclic voltammetry; concrete;

D O I：

10.1016/j.corsci.2005.05.004

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

Hybrid material polypyrrole/PW12O403- was electrosynthesised on carbon steel electrodes in acetonitrile medium. Passivation pretreatment of carbon steel in acetonitrile/perchlorate medium was used to avoid electrodissolution of electrode during the polymerisation. These hybrid coatings were evaluated against corrosion in chloride-containing 0.05 M NaOH and solutions obtained by filtering Portland cement slurries. Cyclic voltammetry, polarisation resistance (R-p), and Fe2+ concentrations measurements showed that the obtained coatings provide good protection against corrosion in chloride-containing media. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1122 / 1136

页数：15

共 42 条

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EQCM study of polypyrrole modified electrodes doped with Keggin-type heteropolyanion for cation detection [J].