Argan hulls extract: green inhibitor of mild steel corrosion in 1M HCl solution

Argan hulls extract: green inhibitor of mild steel corrosion in 1M HCl solution Argan hulls extract (AHE) was tested as corrosion inhibitor for mild steel in 1 M HCl. Weight loss measurements, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) revealed that inhibiting action increased with increasing concentration of the inhibitor. The highest efficiency 97.3% was obtained at 5 g/L AHE. There was good agreement between gravimetric and electrochemical methods (potentiodynamic polarization and EIS). Results obtained from EIS measurements were analyzed to model the corrosion-inhibition process by use of the appropriate equivalent circuit model; a constant phase element was used. Polarization measurements show also that AHE acts as good mixed inhibitor. AHE is adsorbed on the steel surface in accordance with a Langmuir isotherm adsorption model. Research on Chemical Intermediates Springer Journals

Argan hulls extract: green inhibitor of mild steel corrosion in 1M HCl solution

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Springer Netherlands
Copyright © 2012 by Springer Science+Business Media B.V.
Chemistry; Physical Chemistry; Inorganic Chemistry; Catalysis
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