Galvanostatic coating of polyaniline on steel

Kazum, O., and Kannan, M. Bobby (2013) Galvanostatic coating of polyaniline on steel. In: Proceedings of the Australasian Corrosion Association Annual Conference, pp. 1-6. From: ACA 2013: Australasian Corrosion Association Annual Conference, 10-13 November 2013, Brisbane, QLD, Australia.

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Abstract

In this study, polyaniline (PANI) was coated on a steel using galvanostatic technique. The corrosion performance of the coating was studied using electrochemical techniques such as electrochemical impedance spectroscopy (EIS) and potentiodynamic polarisation in 3.5 wt. % NaCl solution. The electrochemical experiments showed that PANI coating produced using a current density of 5 mA cm-2 enhanced the corrosion resistance of the steel significantly, the corrosion current density (icorr) decreased by ~ 88 % and the polarisation resistance (RP) increased by ~ 70%. Higher current density coatings produced large pores and have deteriorated the coating performance.

Item ID: 30231
Item Type: Conference Item (Refereed Research Paper - E1)
Keywords: steel, polyaniline, galvanostatic polymerisation, corrosion
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ISSN: 1442-0139
Date Deposited: 19 Mar 2014 23:57
FoR Codes: 09 ENGINEERING > 0912 Materials Engineering > 091209 Polymers and Plastics @ 100%
SEO Codes: 86 MANUFACTURING > 8612 Fabricated Metal Products > 861201 Coated Metal and Metal-Coated Products @ 100%
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