Mohammed LASRI
(Laboratory of Applied Chemistry and Biomass, Department of Chemistry, University Cadi Ayyad, Faculty of Sciences Semlalia ,BP 2390, Marrakech, Morocco)
Corrosion of pure copper in a corrosive solution 3.5 wt% NaCl was tested using a novel inhibitor based on 2-hydroxy-5-((4-(hydroxymethyl)-1H-1,2,3-triazol-1-yl)methyl) Benzaldehyde [STR] in comparison with Benzotriazole [BTA]. In the experimental study, electrochemical impedance and potentiodynamic polarization tests were performed on both inhibitor studies. The Increasing of inhibitor concentration causes a significant shift in the oxidation rate of copper in an aggressive media containing chloride ions. At 10-4M of STR and BTA, the inhibition effectiveness is 92.37% and 97.76% respectively. The Tafel curves revealed that STR and BTA were mixed-type inhibitors. According to the Nyquist curve plot, raising the inhibitor concentration led in a rise in polarization resistance, reflecting an increase in inhibition efficiency and a drop in double-layer capacity. The influence of temperature at 10-4M concentration of STR and BTA in the range of 298-323 K revealed that the inhibitory efficiency decreased somewhat with temperature in STR more than BTA. The activation energy, as well as thermodynamic data like enthalpy, entropy, and free energy, were calculated and explained. The experimental results were confirmed by the theoretical calculations which could also provide additional insight into the mechanism of adsorption of our inhibitor molecules on the copper surface.
Mohammed LASRI
(Laboratory of Applied Chemistry and Biomass, Department of Chemistry, University Cadi Ayyad, Faculty of Sciences Semlalia ,BP 2390, Marrakech, Morocco)
Dr
Mourad Fawzi
(Laboratory of Molecular Chemistry, Faculty of Sciences Semlalia, P.O. Box 2390, Marrakech 40001, Morocco)
Dr
Othman Zakir
(Laboratory of Applied Chemistry and Biomass, Department of Chemistry, University Cadi Ayyad, Faculty of Sciences Semlalia ,BP 2390, Marrakech, Morocco)
Prof.
Ali Hasnaoui
(Laboratory of Molecular Chemistry, Faculty of Sciences Semlalia, P.O. Box 2390, Marrakech 40001, Morocco)
Prof.
Rachid Idouhli
(Laboratory of Applied Chemistry and Biomass, Department of Chemistry, University Cadi Ayyad, Faculty of Sciences Semlalia ,BP 2390, Marrakech, Morocco)
Prof.
Mohamed Maatallah
(Laboratory of Molecular Chemistry, Faculty of Sciences Semlalia, P.O. Box 2390, Marrakech 40001, Morocco)
Prof.
Mohy eddine khadiri
(Laboratory of Applied Chemistry and Biomass, Department of Chemistry, University Cadi Ayyad, Faculty of Sciences Semlalia ,BP 2390, Marrakech, Morocco)
Prof.
Moulay Youssef Ait Itto
(Laboratory of Molecular Chemistry, Faculty of Sciences Semlalia, P.O. Box 2390, Marrakech 40001, Morocco)
Prof.
Aziz Auhmani
(Laboratory of Molecular Chemistry, Faculty of Sciences Semlalia, P.O. Box 2390, Marrakech 40001, Morocco)
Prof.
Abdesselam Abouelfida
(Laboratory of Applied Chemistry and Biomass, Department of Chemistry, University Cadi Ayyad, Faculty of Sciences Semlalia ,BP 2390, Marrakech, Morocco)
