Anticorrosive ability of electrochemically synthesized 2,2′-disulfanediyldianiline for mild steel corrosion: electrochemical and thermodynamic studies

Authors

• M. R. Vinutha ¹
• T. V. Venkatesha * ¹
• C. Nagaraja ¹

• Department of Chemistry, School of Chemical Sciences, Jnana Sahyadri Campus, Kuvempu University, Shankaraghatta, Karnataka, 577451, India

Abstract

The corrosion inhibition property of electrochemically synthesized 2,2′-disulfanediyldianiline compound was investigated for mild steel in 1 M HCl using electrochemical and weight loss techniques. The morphology of steel surface was examined using SEM and optical microscopy. Thermodynamic parameters were determined and discussed. To study the effect of the molecular structure of inhibitor on its inhibitive performance, quantum chemical studies were performed using density functional theory by B3LYP/6-311G (d,p) basis set. The theoretical studies depicted –N and –S atoms as the adsorption centers in molecule.

Keywords

• Disulfide
• Thermodynamic parameters
• Inhibitor
• DFT