Abstract

FAYOMI, O.S.I. et al. Inhibitive characteristics of cefalexin drug addition on corrosion evolution of mild steel in a chloride medium. Port. Electrochim. Acta [online]. 2021, vol.39, n.2, pp.149-157.  Epub Apr 30, 2021. ISSN 0872-1904.  https://doi.org/10.4152/pea.202102149.

The inhibition effect of Cefalexin on mild steel corrosion in sodium chloride has been examined with the use of electrochemical potentiodynamic polarization techniques, weight loss measurements and computational studies. Cefalexin showed good protection ability by adsorbing onto the mild steel surface. The mixed inhibition characteristics of Cefalexin were revealed by the potentiodynamic polarization results. The inhibitor efficiency was found to be above 65%, obeying the Langmuir and Freundlich isotherm law, with a correlation regression coefficient of R2= 0.9984 and R2= 0.9488, respectively, establishing the reliability on Cefalexin as an inhibitor.

Keywords : Mild steel; polarization; interfaces; passivation; Cefalexin.

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