Khadiri, A. and Saddik, R. and Bekkouche, K. and Aouniti, A. and Hammouti, B. and Benchat, N. and Bouachrine, M. and Solmaz, R. (2016) Gravimetric, electrochemical and quantum chemical studies of some pyridazine derivatives as corrosion inhibitors for mild steel in 1 M HCl solution. Journal of the Taiwan Institute of Chemical Engineers, 58. pp. 552-564.

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Abstract

The corrosion inhibition performances of three pyridazine derivatives, 6-methyl-4,5-dihydro-2H-pyridazine-3-one (MPYO), 6-phenyl-2H-pyridazine-3-one (PPYO) and 6-phenyl-2H-pyridazine-3-thione (PPYS) for mild steel in 1 M HCl solution were studied by gravimetric, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. Some thermodynamic parameters were calculated and discussed. The effect of molecular structure on the inhibition efficiency was theoretically studied by density functional theory (DFT). Experimental and theoretical studies agreed well and confirmed that PPYS is the best corrosion inhibitor among the studied organic compounds which was related to the presence of a more favorable adsorption center of S atom in its molecular structure. © 2015 Taiwan Institute of Chemical Engineers.

Item Type: Article
Uncontrolled Keywords: Carbon steel; Corrosion; Density functional theory; Electrochemical corrosion; Electrochemical impedance spectroscopy; Hydrochloric acid; Molecular structure; Polarization; Pyridine; Quantum chemistry; Steel, Acid corrosion; Acid solutions; Corrosion inhibition performance; EIS; Inhibition efficiency; Quantum chemical studies; Thermodynamic parameter; Weight loss, Corrosion inhibitors
Subjects: Chemical Engineering
Divisions: SCIENTIFIC PRODUCTION > Chemical Engineering
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:44
URI: http://eprints.umi.ac.ma/id/eprint/1734

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