Garcinia livingstonei leaves extract influenced as a mild steel efficient green corrosion inhibitor in 1 M HCl solution

Garcinia livingstonei leaves extract (GLLE) comprises several bioactive components. The environmentally sustainable inhibitor GLLE was evaluated for mild steel (MS) corrosion control in 1 M HCl solution, employing mass loss, electrochemical impedance spectroscopy, and Tafel polarization methods. The GLLE adsorption showed the ability of inhibitor on MS. GLLE appears to be a mixed inhibitor. The rate of corrosion, inhibitor performance and effect of temperature were studied. Adsorption thermodynamic parameters were computed and interpreted. FT-IR spectra indicated GLLE adsorption on the MS surface. SEM, AFM, and contact angle investigations revealed the modification of MS surface morphology in presence of GLLE.(c) 2021 Elsevier Ltd. All rights reserved.Selection and peer-review under responsibility of the scientific committee of the International Confer-ence on "Materials Science and Mathematics for Advanced Technology".