ArticleLangmuir : the ACS journal of surfaces and colloids2026
Understanding the Role of Diethanolamine-Based Protic Ionic Liquids in Corrosion Inhibition: Electrochemical and Surface Characterization of Carbon Steel in Saline Environments.
Article in Langmuir : the ACS journal of surfaces and colloids, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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9 authors.
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Abstract
This study presents an evaluation of the corrosion inhibition behavior of three protic ionic liquids (PILs), 2-hydroxy diethanolamine formate (PIL A: 2-HDEAF), 2-hydroxy diethanolamine propionate (PIL B: 2-HDEAP), and 2-hydroxy diethanolamine pentanoate (PIL C: 2-HDEAPe), on A36 carbon steel in a chloride electrolyte (3.5 wt % NaCl). The emphasis was converged on elucidating interfacial adsorption, film formation, and surface chemistry that reinforce inhibitor efficacy. A complementary set of electrochemical and surface techniques, including weight loss measurements, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), optical microscopy, field-emission scanning electron microscopy (FE-SEM), and atomic force microscopy (AFM), was employed to evaluate the electrochemical response and characterize the inhibitor-modified steel surfaces. X-ray diffraction (XRD) was used to perform an identification of the main phases of corrosion products and adsorbed films. The adsorption behavior was quantitatively evaluated using several adsorption isotherm models, including Langmuir, Temkin, and Freundlich. Among them, the Frumkin isotherm provided the best description of the experimental data, yielding an average standard free energy of adsorption (Δ
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