Efficacious Alkaline Copper Corrosion ...
Type de document :
Compte-rendu et recension critique d'ouvrage
DOI :
Titre :
Efficacious Alkaline Copper Corrosion Inhibition by a Mixed Ligand Copper(II) Complex of 2,2′‐Bipyridine and Glycine: Electrochemical and Theoretical Studies
Auteur(s) :
Ibrahim, Mohamed [Auteur]
Saleh, Dalia [Auteur]
El‐hendawy, Morad [Auteur]
Fallatah, Ahmed [Auteur]
Mersal, G. [Auteur]
Boukherroub, Rabah [Auteur correspondant]
NanoBioInterfaces - IEMN [NBI - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Wysocka, Joanna [Auteur]
Ryl, Jacek [Auteur]
Amin, Mohammed [Auteur]
Saleh, Dalia [Auteur]
El‐hendawy, Morad [Auteur]
Fallatah, Ahmed [Auteur]
Mersal, G. [Auteur]
Boukherroub, Rabah [Auteur correspondant]

NanoBioInterfaces - IEMN [NBI - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Wysocka, Joanna [Auteur]
Ryl, Jacek [Auteur]
Amin, Mohammed [Auteur]
Titre de la revue :
ChemElectroChem
Pagination :
2052-2064
Éditeur :
Weinheim : Wiley-VCH
Date de publication :
2021-06-01
ISSN :
2196-0216
Mot(s)-clé(s) en anglais :
copper complex
copper corrosion inhibitors
DFT
Monte Carlo simulations
mixed ligand complexes
X-ray structure
copper corrosion inhibitors
DFT
Monte Carlo simulations
mixed ligand complexes
X-ray structure
Discipline(s) HAL :
Sciences de l'ingénieur [physics]
Résumé en anglais : [en]
A mixed ligand copper(II) complex, namely, [Cu(BPy)(Gly)Cl]⋅2H2O (CuC) (BPy=2,2′-bipyridine and Gly=glycine), was synthesized and characterized. The synthesized CuC complex was tested as inhibitor to effectively mitigate ...
Lire la suite >A mixed ligand copper(II) complex, namely, [Cu(BPy)(Gly)Cl]⋅2H2O (CuC) (BPy=2,2′-bipyridine and Gly=glycine), was synthesized and characterized. The synthesized CuC complex was tested as inhibitor to effectively mitigate the corrosion of copper in alkaline solutions using the linear sweep voltammetry (LSV) and linear polarization resistance (LPR) techniques. For the sake of comparison, such two D.C. electrochemical techniques were also applied to the Cu/OH− interface in the presence of the two studied free ligands, namely, BPy and Gly. The results showed that the three studied compounds acted as mixed-type inhibitors, with CuC being the most efficacious one. The adsorption of the inhibitor is confirmed from X-ray photoelectron spectroscopy (XPS) profiles by the appearance of organic chlorine as well as pyridine and amine nitrogen bonds. Based on XPS data, it was presumed that the corrosion inhibitor stimulates the formation of Cu2CO3(OH)2 species at the electrode surface since, in the case of a corroded reference sample (in absence of inhibitors), its proportion is trivial. The reactivity of the isolated inhibitors was analyzed by computing several quantum chemical parameters based on the density functional theory (DFT). A good correlation was found between these parameters and the anticorrosive performance. Additionally, Monte Carlo simulation studies were applied to find the best configurational space of ligands and their complex on the Cu(111) surface.Lire moins >
Lire la suite >A mixed ligand copper(II) complex, namely, [Cu(BPy)(Gly)Cl]⋅2H2O (CuC) (BPy=2,2′-bipyridine and Gly=glycine), was synthesized and characterized. The synthesized CuC complex was tested as inhibitor to effectively mitigate the corrosion of copper in alkaline solutions using the linear sweep voltammetry (LSV) and linear polarization resistance (LPR) techniques. For the sake of comparison, such two D.C. electrochemical techniques were also applied to the Cu/OH− interface in the presence of the two studied free ligands, namely, BPy and Gly. The results showed that the three studied compounds acted as mixed-type inhibitors, with CuC being the most efficacious one. The adsorption of the inhibitor is confirmed from X-ray photoelectron spectroscopy (XPS) profiles by the appearance of organic chlorine as well as pyridine and amine nitrogen bonds. Based on XPS data, it was presumed that the corrosion inhibitor stimulates the formation of Cu2CO3(OH)2 species at the electrode surface since, in the case of a corroded reference sample (in absence of inhibitors), its proportion is trivial. The reactivity of the isolated inhibitors was analyzed by computing several quantum chemical parameters based on the density functional theory (DFT). A good correlation was found between these parameters and the anticorrosive performance. Additionally, Monte Carlo simulation studies were applied to find the best configurational space of ligands and their complex on the Cu(111) surface.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Source :