Abstract
Metallic corrosion is a serious industrial problem due to its impact on economic losses and unavoidable structural damage. In this work, Ficus hispida leaf extract (FHLE) is employed in 1 M H2SO4 as a corrosion control agent on mild steel. FHLE effect on corrosion reduction of mild steel has been studied using non-electrochemical and electrochemical methods. From the experimental results, it is proved that the protection efficiency rises with increase in FHLE concentration and diminishes with increase in temperature. Tafel polarization plots suggest that FHLE prevents corrosion both anodic and cathodic area. The charge transfer resistance increased and the double-layer capacitance diminished when the FHLE concentration increased which is verified by AC impedance data. Various spectroscopic studies have affirmed the presence of a protective film on the electrode surfaces.
Published Version
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