Development of a predictive model for corrosion inhibition of carbon steel by imidazole and benzimidazole derivatives

被引：190

作者：

Gutierrez, Evelin ^{[1
]}

Rodriguez, Jose A. ^{[1
]}

Cruz-Borbolla, Julian ^{[1
]}

Alvarado-Rodriguez, Jose G. ^{[1
]}

Thangarasu, Pandiyan ^{[2
]}

机构：

[1] Univ Autonoma Estado Hidalgo, Unidad Univ, Area Acad Quim, Km 4-5 Carretera Pachuca Tulancingo, Pachuca Hidalgo 42184, Mexico

[2] Univ Nacl Autonoma Mexico, Fac Quim, Ciudad Univ, Mexico City 04510, DF, Mexico

来源：

CORROSION SCIENCE | 2016年 / 108卷

关键词：

Alloy; EIS; Modelling studies; Acid corrosion; MILD-STEEL; HCL; ADSORPTION; BEHAVIOR; IRON;

D O I：

10.1016/j.corsci.2016.02.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The corrosion inhibition efficiency of carbon steel was evaluated using fifteen molecules derivated from imidazole and benzimidazole in 1.0 M HCl. The inhibition efficiency varies from 15.6 to 89.4%, depending on the chemical and the electronic structure of the compounds. The structural properties of the molecules under study were determined by density functional theory. Experimental and theoretical parameters were used to construct a model to predict the inhibition observed. The proposed model shows that inhibition efficiency is related to the molecule volume, charge, electronegativity, and aromaticity. The model is successfully used to predict the corrosion behavior of two additional molecules. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：23 / 35

页数：13

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