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

M. Rbaa; F. Benhiba; M. Galai; Ashraf S. Abousalem; M. Ouakki; Chin-Hung Lai; B. Lakhrissi; Charafeddine Jama; I. Warad; M. Ebn Touhami; A. Zarrouk

doi:10.1016/j.cplett.2020.137771

Article dans une revue

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

M. Rbaa ¹ F. Benhiba ¹ M. Galai Ashraf S. Abousalem ¹ M. Ouakki ¹ Chin-Hung Lai B. Lakhrissi ¹ Charafeddine Jama ² I. Warad ³ M. Ebn Touhami ¹ A. Zarrouk ⁴

1 UIT - Université Ibn Tofaïl

2 UMET - Unité Matériaux et Transformations - UMR 8207

3 Qatar University

4 Université Mohammed V

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.

Keywords : Synthesis Complexes Electrochemical techniques ICP-OES/SEM DFT/MD simulations

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Article dans une revue

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Chimie / Polymères

Chimie / Matériaux

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https://hal.univ-lille.fr/hal-02926173
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Soumis le : lundi 31 août 2020 - 14:36:17
Dernière modification le : mardi 19 octobre 2021 - 11:49:47

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

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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

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