An investigation of benzimidazole derivative as corrosion inhibitor for mild steel in different concentration HCl solutions

被引：324

作者：

Wang, Xiumei ^{[1
,2
]}

Yang, Huaiyu ^{[1
]}

Wang, Fuhui ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Corros & Protect, Inst Met Res, Shenyang 110016, Peoples R China

[2] Shenyang Jianzhu Univ, Sch Mat Sci & Engn, Shenyang 110168, Peoples R China

来源：

CORROSION SCIENCE | 2011年 / 53卷 / 01期

关键词：

Mild steel; EIS; Polarization; Acid inhibition; COLD-ROLLED STEEL; QUATERNARY AMMONIUM BROMIDES; N-CONTAINING HETEROCYCLES; SULFURIC-ACID; CARBON-STEEL; WEIGHT-LOSS; ADSORPTION CHARACTERISTICS; TRIAZOLE DERIVATIVES; MOLECULAR-STRUCTURE; IRON CORROSION;

D O I：

10.1016/j.corsci.2010.09.029

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influences of a benzimidazole derivative namely 1 8-bis (1-chlorobenzyl-benzimidazolyl) -octane (CBO) on the corrosion behaviour of mild steel in different concentration HCl solutions were studied by weight loss potentiodynamic polarization electrochemical impedance spectroscopy (EIS) measurements and SEM observations The results showed that CBO acted as an excellent and a mixed-type inhibitor via strongly chemical adsorption onto mild steel surface to suppress simultaneously both anodic and cathodic processes according to the Langmuir adsorption isotherm Inhibition efficiencies increased with increasing concentration of inhibitor and HCl An inhibition mechanism was proposed in terms of strongly adsorption of inhibitor molecules on mild steel surface (C) 2010 Elsevier Ltd All rights reserved

引用

页码：113 / 121

页数：9

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