Extracts of Ruta Chalepensis as Green Corrosion Inhibitor for Copper CDA 110 in 3% NaCl Medium: Experimental and Theoretical Studies
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Date
2019-07-03
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Analytical &Bioanalytical Electrochemistry
Abstract
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