1-octyl-2-(Octylthio)-1H-benzimidazole as a new and effective corrosion inhibitor for carbon steel in 1 M HCl

F. El-Hajjaji; I. Merimi; L. El Ouasif; M. El Ghoul; R. Achour; B. Hammouti; M. E. Belghiti; D. S. Chauhan; M. A. Quraishi

doi:10.4152/pea.201903131

1-octyl-2-(Octylthio)-1H-benzimidazole as a new and effective corrosion inhibitor for carbon steel in 1 M HCl

F. El-Hajjaji
, I. Merimi
, L. El Ouasif
, M. El Ghoul
, R. Achour
, B. Hammouti
, M. E. Belghiti
, D. S. Chauhan^*
, M. A. Quraishi

^*Corresponding author for this work

Interdisciplinary Research Center for Advanced Materials

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

The corrosion inhibition effect of 1-octyl-2-(octylthio)-1H-benzimidazole (T3) on mild steel in a 1 M hydrochloric acid solution was studied using weight loss measurement, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques, at 308 K. This compound has exhibited a corrosion inhibition efficiency of 93% at 10^-3 M concentration. The adsorption of this molecule onto the mild steel surface obeyed Langmuir adsorption isotherm. Potentiodynamic polarization measurements indicated that the studied compound acted as a mixed type corrosion inhibitor. EIS results showed that an increased inhibitor concentration led to an increase in the polarization resistance and decrease in the double layer capacitance.

Original language	English
Pages (from-to)	131-145
Number of pages	15
Journal	Portugaliae Electrochimica Acta
Volume	37
Issue number	3
DOIs	https://doi.org/10.4152/pea.201903131
State	Published - 2019

Bibliographical note

Publisher Copyright:
© 2019, Sociedade Portuguesa de Electroquimica. All rights reserved.

Keywords

Benzimidazole
Corrosion inhibition
Electrochemical impedance spectroscopy and potentiodynamic polarization
Mild steel

ASJC Scopus subject areas

Electrochemistry

Access to Document

10.4152/pea.201903131

Cite this

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title = "1-octyl-2-(Octylthio)-1H-benzimidazole as a new and effective corrosion inhibitor for carbon steel in 1 M HCl",

abstract = "The corrosion inhibition effect of 1-octyl-2-(octylthio)-1H-benzimidazole (T3) on mild steel in a 1 M hydrochloric acid solution was studied using weight loss measurement, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques, at 308 K. This compound has exhibited a corrosion inhibition efficiency of 93\% at 10-3 M concentration. The adsorption of this molecule onto the mild steel surface obeyed Langmuir adsorption isotherm. Potentiodynamic polarization measurements indicated that the studied compound acted as a mixed type corrosion inhibitor. EIS results showed that an increased inhibitor concentration led to an increase in the polarization resistance and decrease in the double layer capacitance.",

keywords = "Benzimidazole, Corrosion inhibition, Electrochemical impedance spectroscopy and potentiodynamic polarization, Mild steel",

author = "F. El-Hajjaji and I. Merimi and \{El Ouasif\}, L. and \{El Ghoul\}, M. and R. Achour and B. Hammouti and Belghiti, \{M. E.\} and Chauhan, \{D. S.\} and Quraishi, \{M. A.\}",

year = "2019",

doi = "10.4152/pea.201903131",

language = "English",

volume = "37",

pages = "131--145",

journal = "Portugaliae Electrochimica Acta",

issn = "0872-1904",

publisher = "Sociedade Portuguesa de Electroquimica",

number = "3",

}

TY - JOUR

T1 - 1-octyl-2-(Octylthio)-1H-benzimidazole as a new and effective corrosion inhibitor for carbon steel in 1 M HCl

AU - El-Hajjaji, F.

AU - Merimi, I.

AU - El Ouasif, L.

AU - El Ghoul, M.

AU - Achour, R.

AU - Hammouti, B.

AU - Belghiti, M. E.

AU - Chauhan, D. S.

AU - Quraishi, M. A.

PY - 2019

Y1 - 2019

N2 - The corrosion inhibition effect of 1-octyl-2-(octylthio)-1H-benzimidazole (T3) on mild steel in a 1 M hydrochloric acid solution was studied using weight loss measurement, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques, at 308 K. This compound has exhibited a corrosion inhibition efficiency of 93% at 10-3 M concentration. The adsorption of this molecule onto the mild steel surface obeyed Langmuir adsorption isotherm. Potentiodynamic polarization measurements indicated that the studied compound acted as a mixed type corrosion inhibitor. EIS results showed that an increased inhibitor concentration led to an increase in the polarization resistance and decrease in the double layer capacitance.

AB - The corrosion inhibition effect of 1-octyl-2-(octylthio)-1H-benzimidazole (T3) on mild steel in a 1 M hydrochloric acid solution was studied using weight loss measurement, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques, at 308 K. This compound has exhibited a corrosion inhibition efficiency of 93% at 10-3 M concentration. The adsorption of this molecule onto the mild steel surface obeyed Langmuir adsorption isotherm. Potentiodynamic polarization measurements indicated that the studied compound acted as a mixed type corrosion inhibitor. EIS results showed that an increased inhibitor concentration led to an increase in the polarization resistance and decrease in the double layer capacitance.

KW - Benzimidazole

KW - Corrosion inhibition

KW - Electrochemical impedance spectroscopy and potentiodynamic polarization

KW - Mild steel

UR - https://www.scopus.com/pages/publications/85060863317

U2 - 10.4152/pea.201903131

DO - 10.4152/pea.201903131

M3 - Article

AN - SCOPUS:85060863317

SN - 0872-1904

VL - 37

SP - 131

EP - 145

JO - Portugaliae Electrochimica Acta

JF - Portugaliae Electrochimica Acta

IS - 3

ER -

1-octyl-2-(Octylthio)-1H-benzimidazole as a new and effective corrosion inhibitor for carbon steel in 1 M HCl

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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