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Article – Journal of Advanced Electrochemistry

Journal of Advanced Electrochemistry, Volume 3,Issue 1,2017 Pages 144-147

Pithecollobium dulce Extract: A Novel Eco-Friendly Corrosion Inhibitor for Mild Steel Protection in Artificial Corrosive Medium
G. Subramanian, R. Sayee Kannan*, M. Malarvizhi, P. Muthirulan

The effect of corrosion inhibition on mild steel in 3.5% sodium chloride (NaCl) solution was investigated using eco-friendly new corrosion inhibitor namely Pithecollobium dulce extract (PCD). A significant decrease in the corrosion rate of MS was observed in the presence of inhibitor. Electrochemical corrosion studies showed that the inhibition efficiencies increased with increasing inhibitor concentration. Inhibitive effect was afforded by adsorption of the extract components which was found to accord with Langmuir adsorption isotherm. The UV-Vis spectroscopy, Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) analysis were carried out to characterize the surface film.
Keywords: Pithecollobium dulce; Mild Steel; Electrochemical Studies;