Corrosion inhibition of carbon-steel with 2-mercaptobenzimidazole in hydrochloric acid

P Morales-Gil; M S Walczak; C Ruiz Camargo; R A Cottis; J M Romero; R Lindsay

doi:10.1016/j.corsci.2015.08.032

Corrosion inhibition of carbon-steel with 2-mercaptobenzimidazole in hydrochloric acid

P Morales-Gil, M S Walczak, C Ruiz Camargo, R A Cottis, J M Romero, R Lindsay

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Abstract

Electrochemical measurements and substrate analysis have been employed to probe the corrosion inhibition performance of 2-mercaptobenzimidazole (MBI) for carbon-steel in 1 M, 0.1 M, and 0.01 M HCl. Data demonstrate that the inhibition efficiency of MBI is essentially independent of HCl concentration. Moreover, it is concluded that the presence of MBI impedes the cathodic reduction of dissolved O2 to a lesser extent than H+. X-ray photoelectron spectra indicate that substrate termination varies as a function of both HCl and MBI concentration, with the interface consisting of MBI bound to film-free carbon-steel on highly inhibited substrates.

Original language	English
Pages (from-to)	47-55
Number of pages	9
Journal	Corrosion Science
Volume	- 101
DOIs	https://doi.org/10.1016/j.corsci.2015.08.032
Publication status	Published - 2015

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title = "Corrosion inhibition of carbon-steel with 2-mercaptobenzimidazole in hydrochloric acid",

abstract = "Electrochemical measurements and substrate analysis have been employed to probe the corrosion inhibition performance of 2-mercaptobenzimidazole (MBI) for carbon-steel in 1 M, 0.1 M, and 0.01 M HCl. Data demonstrate that the inhibition efficiency of MBI is essentially independent of HCl concentration. Moreover, it is concluded that the presence of MBI impedes the cathodic reduction of dissolved O2 to a lesser extent than H+. X-ray photoelectron spectra indicate that substrate termination varies as a function of both HCl and MBI concentration, with the interface consisting of MBI bound to film-free carbon-steel on highly inhibited substrates.",

author = "P Morales-Gil and Walczak, {M S} and Camargo, {C Ruiz} and Cottis, {R A} and Romero, {J M} and R Lindsay",

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doi = "10.1016/j.corsci.2015.08.032",

language = "English",

volume = "- 101",

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T1 - Corrosion inhibition of carbon-steel with 2-mercaptobenzimidazole in hydrochloric acid

AU - Morales-Gil, P

AU - Walczak, M S

AU - Camargo, C Ruiz

AU - Cottis, R A

AU - Romero, J M

AU - Lindsay, R

N1 - - Corrosion inhibition of carbon-steel with 2-mercaptobenzimidazole in hydrochloric acid - 47

PY - 2015

Y1 - 2015

N2 - Electrochemical measurements and substrate analysis have been employed to probe the corrosion inhibition performance of 2-mercaptobenzimidazole (MBI) for carbon-steel in 1 M, 0.1 M, and 0.01 M HCl. Data demonstrate that the inhibition efficiency of MBI is essentially independent of HCl concentration. Moreover, it is concluded that the presence of MBI impedes the cathodic reduction of dissolved O2 to a lesser extent than H+. X-ray photoelectron spectra indicate that substrate termination varies as a function of both HCl and MBI concentration, with the interface consisting of MBI bound to film-free carbon-steel on highly inhibited substrates.

AB - Electrochemical measurements and substrate analysis have been employed to probe the corrosion inhibition performance of 2-mercaptobenzimidazole (MBI) for carbon-steel in 1 M, 0.1 M, and 0.01 M HCl. Data demonstrate that the inhibition efficiency of MBI is essentially independent of HCl concentration. Moreover, it is concluded that the presence of MBI impedes the cathodic reduction of dissolved O2 to a lesser extent than H+. X-ray photoelectron spectra indicate that substrate termination varies as a function of both HCl and MBI concentration, with the interface consisting of MBI bound to film-free carbon-steel on highly inhibited substrates.

U2 - 10.1016/j.corsci.2015.08.032

DO - 10.1016/j.corsci.2015.08.032

M3 - Article

VL - - 101

SP - 47

EP - 55

JO - Corrosion Science

JF - Corrosion Science

SN - 0010-938X

ER -

Corrosion inhibition of carbon-steel with 2-mercaptobenzimidazole in hydrochloric acid

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