A. S. Fouda, G. Y. Elewady, K. shalabi, S. Habouba
Anise extract, was investigated as green corrosion inhibitor of carbon steel in 1 M HCl solution using weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM) techniques. Surface morphology was tested using scanning electron microscope (SEM) and energy dispersive X-ray (EDX). The adsorption of the inhibitors on carbon steel surface was found to obey the Langmuir’s adsorption isotherm. The activation and adsorption parameters were calculated and discussed
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