Performance and theoretical study on corrosion inhibition of 2-(4-pyridyl)-benzimidazole for mild steel in hydrochloric acid

被引：303

作者：

Zhang, Fan ^{[1
]}

Tang, Yongming ^{[1
]}

Cao, Ziyi ^{[1
]}

Jing, Wenheng ^{[2
,3
]}

Wu, Zhenglei ^{[1
]}

Chen, Yizhong ^{[4
]}

机构：

[1] Nanjing Univ Technol, Sch Sci, Nanjing 210009, Jiangsu, Peoples R China

[2] State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Jiangsu, Peoples R China

[3] Nanjing Univ Technol, Coll Chem & Chem Engn, Nanjing 210009, Jiangsu, Peoples R China

[4] Jiangsu Polytech Univ, Sch Environm & Safety Engn, Changzhou 213164, Peoples R China

来源：

CORROSION SCIENCE | 2012年 / 61卷

关键词：

Mild steel; Polarization; EIS; Modeling studies; Acid inhibition; BENZIMIDAZOLE DERIVATIVES; MOLECULAR-STRUCTURE; ADSORPTION CHARACTERISTICS; ELECTRONIC-STRUCTURE; M H2SO4; IRON; SIMULATION; DYNAMICS; 2-MERCAPTOBENZIMIDAZOLE; 2,3-DIAMINONAPHTHALENE;

D O I：

10.1016/j.corsci.2012.03.045

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Inhibition performance of 2-(4-pyridyl)-benzimidazole (PBI) against corrosion of mild steel in 1.0 M HCl was investigated by weight loss and electrochemical measurements. The inhibition efficiency increased with increasing inhibitor's concentration, but decreased with the increase in temperature and concentration of the acid. The theoretical results from DFT and MD simulations reveal that adsorption of PBI depends on the formation of coordinative bonds between PBI molecule and iron surface, and the binding energy between FBI molecule and iron surface is the highest among the three studied compounds. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1 / 9

页数：9

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