Corrosion protection of galvanized steel and electroplating steel by decanoic acid in aqueous solution: Electrochemical impedance spectroscopy, XPS and ATR-FTIR

被引：37

作者：

Lebrini, M. ^{[1
]}

Fontaine, G. ^{[1
]}

Gengembre, L. ^{[2
]}

Traisnel, M. ^{[1
]}

Lerasle, O. ^{[3
]}

Genet, N. ^{[3
]}

机构：

[1] ENSCL, CNRS, LSPES UMR 8008, Lab Procedes Elaborat Revetements Fonct, F-59652 Villeneuve Dascq, France

[2] USTL, Unite Catalyse & Chim Solide, UMR 8181, F-59655 Villeneuve Dascq, France

[3] Ctr Rech Solaize, TOTAL France, F-69360 Solaize, France

来源：

CORROSION SCIENCE | 2009年 / 51卷 / 06期

关键词：

Decanoic acid; Corrosion inhibitors; Galvanized steel; Electroplating steel; Aqueous solution; MILD-STEEL; HYDROCHLORIC-ACID; IRON CORROSION; INHIBITION; DERIVATIVES; MEDIA; BEHAVIOR;

D O I：

10.1016/j.corsci.2009.01.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The inhibiting action of decanoic acid towards the corrosion behaviour of galvanized steel and electroplating steel in aqueous solution has been studied using electrochemical impedance spectroscopy (EIS) techniques. Data obtained from EIS show a frequency distribution and therefore a modelling element with frequency dispersion behaviour. a constant phase element (CPE) has been used. Results obtained revealed that decanoic acid is an effective inhibitor. The better performance was obtained in the case of electroplating steel. X-ray photoelectron spectroscopy surface analysis shows that, decanoic acid is chemisorbed on surface of galvanized steel and electroplating steel. These studies have shown that the active site for binding the film on metal surface is the anionic carboxylate head. Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) spectroscopy was used to identify the nature of the deposits on the metal Surface. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1201 / 1206

页数：6

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