Experimental studies of 2-pyridinecarbonitrile as corrosion inhibitor for mild steel in hydrochloric acid solution

By Reşit Yıldız, Ali Döner, T. Doğan, Ilyas Dehri. 2014

170 citations recorded by the source corpus.

Abstract The effect of 2-Pyridinecarbonitrile (2-PCN) was studied on mild steel (MS) corrosion in 0.1 mol L −1 HCl by electrochemical impedance spectroscopy (EIS), linear polarization resistance (LPR) and potentiodynamic polarization measurements. The surface morphologies of the MS were investigated in the inhibitor-free and in the presence of 10 mmol L −1 2-PCN containing corrosive media, at 120 h exposure period by scanning electron microscopy (SEM). The mechanism of adsorption was determined from the potential of zero charge ( E pzc ). 2-PCN adsorption on the MS surface obeyed the isotherm of Langmuir and the thermodynamic parameters K ads ; Δ G ads ° were also calculated and discussed.

Subfields: Civil and Structural Engineering, Materials Chemistry, Metals and Alloys

View Paper: https://www.semanticscholar.org/paper/e1c2d35b465f2d3f4111ad12f94f3730d39e0b14