Schinopsis lorentzii Extract As a Green Corrosion Inhibitor for Low Carbon Steel in 1 M HCl Solution

The corrosion inhibition of low carbon steel in 1 M HCl solution with different concentrations of Schinopsis lorentzii extract was studied using Tafel extrapolation, linear polarization, and electrochemical impedance spectroscopy (EIS). It was found that Schinopsis lorentzii extract acted as slightl...

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Bibliographic Details
Published inIndustrial & engineering chemistry research Vol. 51; no. 2; pp. 780 - 787
Main Authors Gerengi, Hüsnü, Sahin, Halil Ibrahim
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 18.01.2012
Subjects
Adsorption
Applied sciences
Chemical engineering
Corrosion inhibitors
Electrochemical impedance spectroscopy
Exact sciences and technology
Extrapolation
Hydrochloric acid
Inhibition
Low carbon steels
Materials and Interfaces
Surface chemistry
Carbon steel
Extract
Corrosion inhibitor
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Summary:The corrosion inhibition of low carbon steel in 1 M HCl solution with different concentrations of Schinopsis lorentzii extract was studied using Tafel extrapolation, linear polarization, and electrochemical impedance spectroscopy (EIS). It was found that Schinopsis lorentzii extract acted as slightly cathodic inhibitor and inhibition efficiencies increased with the increase of extract concentration. The adsorption of the molecules of the extract on the low carbon steel surface was in accordance with the Temkin adsorption isotherm. The results showed that Schinopsis lorentzii extract could serve as a corrosion inhibitor of the low carbon steel in hydrochloric acid environment.
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ISSN:0888-5885
1520-5045
DOI:10.1021/ie201776q