The Inhibition Effect of 2-amino-4-chlorobenzothiazole on X65 Steel Corrosion in H2SO4 Solution

被引：2

作者：

Chen, Shujun ^{[1
]}

Chen, Siyi ^{[1
]}

Zhao, Huajun ^{[1
]}

Wang, Hao ^{[1
]}

Wen, Pushan ^{[1
]}

Li, Hao ^{[2
]}

机构：

[1] Zunyi Normal Univ, Sch Chem & Chem Engn, Zunyi 563006, Guizhou, Peoples R China

[2] Chongqing Univ, Sch Chem & Chem Engn, Chongqing 400044, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2020年 / 15卷 / 06期

基金：

美国国家科学基金会;

关键词：

Corrosion inhibitor; X65; steel; potentiodynamic polarization curve; Quantum chemical calculations; Langmuir adsorption; COPPER CORROSION; SULFURIC-ACID; INDAZOLE DERIVATIVES; CARBON-STEEL; MECHANISM; PERFORMANCE; PROTECTION; SODIUM;

D O I：

10.20964/2020.06.37

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this study, we study 2-amino-4-chlorobenzothiazole (ACBT) as a corrosion inhibitor for X65 steel in H2SO4 medium. The corrosion inhibition performance of ACBT for X65 steel has been studied using electrochemical methods, surface morphology analysis and theoretical calculations. Electrochemical experiment data indicated ACBT belongs to mixed-type corrosion inhibitor. When the concentration of ACBT is 5 mM at 298 K, its corrosion inhibition efficiency is close to 90%. The potentiodynamic polarization curve shows that the inhibition effect of ACBT on the cathodic reaction is significantly greater than that of the anodic reaction. SEM morphology analysis strongly proves the corrosion inhibition performance of ACBT. Quantum chemical calculations and molecular dynamics simulations have revealed the corrosion inhibition properties of ACBT. The adsorption of ACBT on the surface of X65 steel conforms to the Langmuir adsorption isothermal model.

引用

页码：5208 / 5219

页数：12

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