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Synthesis and characterization of novel Cu (II) and Zn (II) complexes of 5-{[(2-Hydroxyethyl) sulfanyl] methyl}-8-hydroxyquinoline as effective acid corrosion inhibitor by experimental and computational testings

Abstract : Two new complexes were synthesized, characterized and tested as inhibitors for mild steel corrosion in 1.0 M HCl. The anticorrosive effect has been studied using the potentiodynamic polarization (PDP) and impedance spectroscopy (EIS). The inhibitory efficiency increases with increasing concentration to reach 96.0% for Q-Cu and 94.6% for Q-Zn at 10−3 M. The two inhibitors are mixed type and follows the Langmuir isotherm adsorption. The surface of the mild steel has been examined by SEM/EDS and the corrosive solution by ICP-OES. DFT calculations and molecular dynamic simulation (MD) show a good correlation with the experimental results for both complexes.
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https://hal.univ-lille.fr/hal-02926173
Contributeur : Lilloa Université de Lille <>
Soumis le : lundi 31 août 2020 - 14:36:17
Dernière modification le : mardi 13 octobre 2020 - 14:28:08

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M. Rbaa, F. Benhiba, M. Galai, Ashraf S. Abousalem, M. Ouakki, et al.. Synthesis and characterization of novel Cu (II) and Zn (II) complexes of 5-{[(2-Hydroxyethyl) sulfanyl] methyl}-8-hydroxyquinoline as effective acid corrosion inhibitor by experimental and computational testings. Chemical Physics Letters, Elsevier, 2020, Chemical Physics Letters, pp.137771. ⟨10.1016/j.cplett.2020.137771⟩. ⟨hal-02926173⟩

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