Electrochemical behavior of phenylalanine and its cobalt complex as corrosion inhibitors for mild steel in H2SO4

Electrochemical behavior of phenylalanine and its cobalt complex as corrosion inhibitors for mild... Corrosion inhibition of phenylalanine (phe) and its its cobalt complex(Co-phe) were evaluated using electrochemical polarization and electrochemical impedance spectroscopy (EIS) for mild steel in 0.1 M H2SO4 solution. The results indicate that the compounds inhibit the corrosion of mild steel in H2SO4 solutions and the extent of inhibition increases with inhibitor concentration and decreases with temperature. The order of inhibition efficiency obtained was Co-phe > phe. The adsorption characteristics of the inhibitor were approximated by Langmuir isotherm. Morphological study of the carbon steel electrode surface was undertaken by scanning electron microscope (SEM). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Electrochemical behavior of phenylalanine and its cobalt complex as corrosion inhibitors for mild steel in H2SO4

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Publisher
Pleiades Publishing
Copyright
Copyright © 2015 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427215020263
Publisher site
See Article on Publisher Site

Abstract

Corrosion inhibition of phenylalanine (phe) and its its cobalt complex(Co-phe) were evaluated using electrochemical polarization and electrochemical impedance spectroscopy (EIS) for mild steel in 0.1 M H2SO4 solution. The results indicate that the compounds inhibit the corrosion of mild steel in H2SO4 solutions and the extent of inhibition increases with inhibitor concentration and decreases with temperature. The order of inhibition efficiency obtained was Co-phe > phe. The adsorption characteristics of the inhibitor were approximated by Langmuir isotherm. Morphological study of the carbon steel electrode surface was undertaken by scanning electron microscope (SEM).

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: May 26, 2015

References

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