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Extracts of Ruta Chalepensis as Green Corrosion Inhibitor for Copper CDA 110 in 3% NaCl Medium: Experimental and Theoretical Studies
(Analytical &Bioanalytical Electrochemistry, 2019-07-03) N. Ammouchi; H. Allal; E. Zouaoui; K. Dob
he corrosion inhibition of copper CDA 110 in 3% NaCl by Ruta Chalepensis’ extract is studied by using electrochemical stationary and non-stationary methods. The obtained results reveal a significant enhancement of the inhibition efficiency by increasing the extract concentration. The adsorption behavior is found to obey Langmuir isotherm. Polarization study shows a cathodic character for the green leaves. The increase of medium temperature accelerates the corrosion process. The values of activation energy and thermodynamic parameters are calculated. In-depth the first principles calculations based on density functional density have been performed in order to evaluate the electronic structure and to understand the corrosion mechanism