Corrosion resistance of carbon steel in weak acid solutions in the presence of L-histidine as corrosion inhibitor

被引：187

作者：

Bobina, Marian ^{[1
]}

Kellenberger, Andrea ^{[1
]}

Millet, Jean-Pierre ^{[2
]}

Muntean, Cornelia ^{[1
]}

Vaszilcsin, Nicolae ^{[1
]}

机构：

[1] Univ Politehn Timisoara, Timisoara 300006, Romania

[2] Univ Lyon, INSA Lyon, MATEIS CNRS UMR 5510, F-69621 Villeurbanne, France

来源：

CORROSION SCIENCE | 2013年 / 69卷

关键词：

L-histidine; Corrosion inhibitor; Inhibition efficiency; Electrochemical impedance spectroscopy; MILD-STEEL; AMINO-ACIDS; HYDROCHLORIC-ACID; IRON CORROSION; SCHIFF-BASE; ADSORPTION; EXTRACT; COPPER; ALLOY;

D O I：

10.1016/j.corsci.2012.12.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents the inhibitory properties of L-histidine on the corrosion of carbon steel in weak acid media containing acetic acid/sodium acetate. The inhibition efficiencies obtained by weight loss measurements are in good agreement with values given by Tafel method and electrochemical impedance spectroscopy. The adsorption of L-histidine obeys the Langmuir isotherm and the negative values of Gibbs energy indicate the nature of interactions between inhibitor molecules and metal surface. Further, the inhibition effect was studied using scanning electron microscopy and energy dispersive X-ray analysis. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：389 / 395

页数：7

共 37 条

[11] Computational and electrochemical studies of some amino acid compounds as corrosion inhibitors for mild steel in hydrochloric acid solution [J].