Benzimidazole derivatives as novel inhibitors for the corrosion of mild steel in acidic solution: Experimental and theoietical studies

被引：63

作者：

Zhang, G. A. ^{[1
]}

Hou, X. M. ^{[1
]}

Hou, B. S. ^{[1
]}

Liu, H. F. ^{[1
,2
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Hubei Key Lab Mat Chem & Serv Failure, Minist Educ,Key Lab Mat Chem Energy Convers & Sto, Wuhan 430074, Hubei, Peoples R China

[2] Huazhong Univ Sci & Technol, State Key Lab Coal Combust, Wuhan 410074, Hubei, Peoples R China

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2019年 / 278卷

基金：

中国国家自然科学基金;

关键词：

Mild steel; Inhibitors; Weight loss measurements; Electrochemical measurements; Theoretical calculations; 1 M HCL; CARBON-STEEL; COPPER CORROSION; TRIAZOLE DERIVATIVES; N80; STEEL; PART I; ADSORPTION; PERFORMANCE; BEHAVIOR; INDUSTRY;

D O I：

10.1016/j.molliq.2019.01.060

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The inhibition effects of three kinds of benzimidazole derivatives (2-mercaptobenzimidazole (MBI), 2-thiobenzylbenzimidazole (TBBI) and 1-butyl-2-thiobenzylbenzimidazole (BTBBI)) on the corrosion of mild steel in 1 M HCl solution were studied by weight loss and electrochemical measurements, and theoretical calculations. It is found that these compounds act as mixed type inhibitors with predominant cathodic effectiveness and exhibit high inhibition efficiencies with the order: BTBBI > TBBI > MBI. Molecular dynamics simulations reveal that these benzimidazole derivatives adsorb on Fe (1 1 0) surface in flat orientation. The theoretical calculations are in good accordance with the weight loss and electrochemical measurements. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：413 / 427

页数：15

共 60 条

[1] The inhibition of mild steel corrosion in acidic medium by 2,2′-bis(benzimidazole) [J].