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- W3136779103 abstract "Mercaptobenzimidazoles are an important class of biologically active compounds and one of the most frequently encountered heterocycles in industrial and medicinal chemistry. Herein, bis-mercaptobenzimidazole (bis-MBI) has been synthesized and characterized, in the aim to investigate and compare its corrosion inhibition performance with mercaptobenzimidazole (MBI) for carbon steel (CS) in 1.0 M HCl. Investigations were carried out by combining electrochemical and surface characterization techniques with computational calculations. Experimental results revealed that tested molecules have good inhibition effects against CS corrosion with bis-MBI showing the highest inhibition efficiency (92% at 1 mM). Potentiodynamic polarization measurements displayed that both inhibitors showed high cathodic effects, adsorbed on steel surface through physical and chemical interactions following a Langmuir isotherm model. Natural bond orbitals (NBO) analysis was conducted to evaluate donor-acceptor (D-A) interactions and nature of bonding in tested molecules. In addition, the adsorption of inhibitors’ molecules on steel surface was simulated by molecular dynamics (MD) in a simulation cell that includes all corrosive species. Results from this work showed that bis-mercaptobenzimidazole can be used as effective corrosion inhibitor for carbon steel." @default.
- W3136779103 created "2021-03-29" @default.
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- W3136779103 date "2021-06-01" @default.
- W3136779103 modified "2023-10-03" @default.
- W3136779103 title "The corrosion inhibition and adsorption behavior of mercaptobenzimidazole and bis-mercaptobenzimidazole on carbon steel in 1.0 M HCl: Experimental and computational insights" @default.
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- W3136779103 doi "https://doi.org/10.1016/j.surfin.2021.101095" @default.
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