Theoretical Prediction and Experimental Study of Benzimidazole Derivate as a Novel Corrosion Inhibitor for Carbon Steel in 1.0 M HCl

被引：11

作者：

El Aoufir, Y. ^{[1
,2
]}

Sebhaoui, J. ^{[3
]}

Lgaz, H. ^{[1
,4
]}

El Bakri, Y. ^{[3
]}

Guenbour, A. ^{[2
]}

Bentiss, F. ^{[5
,6
]}

Zarrouk, A. ^{[7
]}

Essassi, E. M. ^{[3
]}

Oudda, H. ^{[1
]}

机构：

[1] Ibn Tofail Univ, Lab Chim Organ Inorgan Electrochim & Environm, Ecole Super Educ & Format, PB 133-14050, Kenitra, Morocco

[2] Mohammed V Univ, Lab Mat Nanotechnol & Environm, POB 1014, Rabat, Morocco

[3] Univ Mohammed 5, Fac Sci, Lab Chim Organ Heterocycl, URAC 21,Pole Competence Pharmacochim, Rabat, Morocco

[4] Ibn Zohr Univ, Lab Appl Chem & Environm, ENSA, POB 1136, Agadir 80000, Morocco

[5] Univ Chouaib Doukkali, Lab Catalyse & Corros Mat LCCM, Fac Sci, BP 20, M-24000 El Jadida, Morocco

[6] Lille Univ, UMET CNRS UMR 8207, ENSCL, F-59000 Lille, France

[7] Mohammed V Univ, Lab Mat Nanotechnol & Environm, Fac Sci, POB 1014, Rabat, Morocco

来源：

PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2020年 / 56卷 / 05期

关键词：

corrosion inhibition; carbon steel; EIS; PDP; DFT; molecular dynamics simulations; MOLECULAR-DYNAMICS SIMULATION; SCHIFF-BASE COMPOUNDS; MILD-STEEL; SULFURIC-ACID; ADSORPTION PROCESSES; MEDIA; TEMPERATURE; PERFORMANCE; MECHANISM; COMPOUND;

D O I：

10.1134/S2070205120050056

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The inhibiting effect of benzimidazole derivate (DBI) on corrosion of carbon steel (CS) at temperature range of 303-333 K was investigated in hydrochloric acid by DC potential dynamic polarization and AC electrochemical impedance spectroscopy. It was found that this compound behaved as a mixed-type inhibitor with predominantly cathodic effect. The EIS results indicate that the inhibition efficiency increases with increasing the inhibitor concentration and the maximum inhibition (%) was obtained in the presence of 10(-3) M of DBI. The adsorption of DBI on the carbon steel surface is described by the Langmuir adsorption isotherm and had a physical and chemical mechanism. The results found experimentally were corroborated by DFT-quantum chemical calculations and molecular dynamics simulations (MDS) methods.

引用

页码：1027 / 1038

页数：12

共 68 条

[1] Corrosion inhibition of Armco iron by 2-mercaptobenzimidazole in sodium chloride 3% media [J].