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Journal of Chemistry
Volume 2013, Article ID 239747, 6 pages
http://dx.doi.org/10.1155/2013/239747
Research Article

Surface Modification of Zinc with an Oxime for Corrosion Protection in Chloride Medium

1Department of Chemistry, I. D. S. G. Government College, Chikmagalur 577 102, India
2Department of P. G. Studies and Research in Chemistry, School of Chemical Sciences, Kuvempu University, Shankaraghatta 577 451, India

Received 10 January 2012; Revised 6 June 2012; Accepted 6 June 2012

Academic Editor: Ali Nokhodchi

Copyright © 2013 Ganesha Achary and Y. Arthoba Naik. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The surface treatment of zinc was done with different concentrations of an oxime (2E)-2-(hydroxylamino)-1,2-diphenylethanol molecule by the immersion method. The electrochemical corrosion studies of surface-treated zinc specimens were performed in aqueous sodium chloride solution (1 M, pH 5.0) at different temperatures in order to study the corrosion mechanism. The recorded electrochemical data indicated a basic modification of the cathodic corrosion behavior of the treated zinc resulting in a decrease of the electron transfer rate. The zinc samples treated by immersion in the inhibiting organic solution presented good corrosion resistance. Using scanning electron microscopy (SEM), it was found that a protective film was formed on the surface of zinc.