Quantum mechanical and electrochemical investigations on corrosion inhibition properties of novel heterocyclic Schiff bases

Kuriakose, N.; Thomas, K.; Raphael, V.; Varghese, C.

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Current Chemistry Letters

ISSN 1927-730x (Online) - ISSN 1927-7296 (Print) Quarterly Publication Volume 6 Issue 4 pp. 177-186 , 2017

Quantum mechanical and electrochemical investigations on corrosion inhibition properties of novel heterocyclic Schiff bases Pages 177-186 Download PDF

Authors: Nimmy Kuriakose, K. Joby Thomas, Vinod P. Raphael, C. Varghese

DOI: 10.5267/j.ccl.2017.6.001

Keywords: Corrosion inhibitors, Mild Steel, Schiff base, Electrochemical impedance, Polarization studies

Abstract: The corrosion inhibition efficiencies of two novel Schiff bases, namely (E)-3-[thiophen-2-ylmethyleneamino]benzoic acid (T2YMABA) and (E)-4-(5-[(2-phenylhydrazono) methyl]thiophen-2-yl)benzoic acid (PHMT2YBA) on mild steel (MS) in 1.0M HCl solution has been investigated and compared using electrochemical impedance spectroscopy and potentiodynamic polarization analysis. The Schiff bases exhibited very good corrosion inhibitions on mild steel in 1.0M HCl medium and the inhibition efficiency increased with the increase in concentration of the inhibitor. Polarization studies revealed that T2YMABA acted as a mixed type inhibitor whereas PHMT2YBA molecules acted as anodic inhibitor.

How to cite this paper

 Kuriakose, N., Thomas, K., Raphael, V & Varghese, C. (2017). Quantum mechanical and electrochemical investigations on corrosion inhibition properties of novel heterocyclic Schiff bases.Current Chemistry Letters, 6(4), 177-186.

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