Electrochemical and computational investigations on the corrosion inhibition of X65 steel by 2-phenylbenzimidazole in H2SO4 solution

Jianhong Tan; Lei Guo; Dan Wu; Xuejing Duan; Senlin Leng; Ime Bassey Obot; Savaş Kaya

doi:10.20964/2020.09.52

Electrochemical and computational investigations on the corrosion inhibition of X65 steel by 2-phenylbenzimidazole in H₂SO₄ solution

Jianhong Tan, Lei Guo^*, Dan Wu, Xuejing Duan, Senlin Leng, Ime Bassey Obot, Savaş Kaya

^*Corresponding author for this work

Interdisciplinary Research Center for Advanced Materials

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

4 Scopus citations

Abstract

In this work, we studied 2-phenylbenzimidazole (PBI) as a corrosion inhibitor for X65 steel in H2SO4 medium. The inhibition performance of PBI for X65 steel were studied using weight loss, electrochemical experiments, surface analysis and computational modelings. The results indicate that PBI has a superior anti-corrosion performance and belongs to modest cathodic-type corrosion inhibitor. The adsorption behavior of PBI molecule on steel conforms to Langmuir adsorption model. The adsorption type is a combination of physical and chemical adsorption. SEM morphology analysis can prove inhibition performance of PBI. DFT calculation and molecular dynamics simulations have revealed active adsorption sites and adsorption configuration of PBI molecule on Fe substrate.

Original language	English
Pages (from-to)	8837-8848
Number of pages	12
Journal	International Journal of Electrochemical Science
Volume	15
Issue number	9
DOIs	https://doi.org/10.20964/2020.09.52
State	Published - 1 Sep 2020

Bibliographical note

Publisher Copyright:
© 2020 The Authors.

Keywords

Acid inhibitor
Corrosion
Electrochemistry
Weight loss
X65 steel

ASJC Scopus subject areas

Electrochemistry

Access to Document

10.20964/2020.09.52

Cite this

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title = "Electrochemical and computational investigations on the corrosion inhibition of X65 steel by 2-phenylbenzimidazole in H2SO4 solution",

abstract = "In this work, we studied 2-phenylbenzimidazole (PBI) as a corrosion inhibitor for X65 steel in H2SO4 medium. The inhibition performance of PBI for X65 steel were studied using weight loss, electrochemical experiments, surface analysis and computational modelings. The results indicate that PBI has a superior anti-corrosion performance and belongs to modest cathodic-type corrosion inhibitor. The adsorption behavior of PBI molecule on steel conforms to Langmuir adsorption model. The adsorption type is a combination of physical and chemical adsorption. SEM morphology analysis can prove inhibition performance of PBI. DFT calculation and molecular dynamics simulations have revealed active adsorption sites and adsorption configuration of PBI molecule on Fe substrate.",

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author = "Jianhong Tan and Lei Guo and Dan Wu and Xuejing Duan and Senlin Leng and Obot, \{Ime Bassey\} and Sava{\c s} Kaya",

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T1 - Electrochemical and computational investigations on the corrosion inhibition of X65 steel by 2-phenylbenzimidazole in H2SO4 solution

AU - Tan, Jianhong

AU - Guo, Lei

AU - Wu, Dan

AU - Duan, Xuejing

AU - Leng, Senlin

AU - Obot, Ime Bassey

AU - Kaya, Savaş

PY - 2020/9/1

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AB - In this work, we studied 2-phenylbenzimidazole (PBI) as a corrosion inhibitor for X65 steel in H2SO4 medium. The inhibition performance of PBI for X65 steel were studied using weight loss, electrochemical experiments, surface analysis and computational modelings. The results indicate that PBI has a superior anti-corrosion performance and belongs to modest cathodic-type corrosion inhibitor. The adsorption behavior of PBI molecule on steel conforms to Langmuir adsorption model. The adsorption type is a combination of physical and chemical adsorption. SEM morphology analysis can prove inhibition performance of PBI. DFT calculation and molecular dynamics simulations have revealed active adsorption sites and adsorption configuration of PBI molecule on Fe substrate.

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KW - Electrochemistry

KW - Weight loss

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