Polyaniline coated on aluminum (Al-2024-T3): Characterization and electrochemical studies

A polyaniline coating was deposited onto an Al‐2024‐T3 substrate using oxalic acid as electrolyte. Both galvanostatic and potentiostatic techniques were used to deposit polyaniline on aluminum under aqueous conditions. The dc polarization studies showed that polyaniline coatings reduced the corrosio...

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Bibliographic Details
Published in:Journal of applied polymer science 2002-08, Vol.85 (8), p.1669-1675
Main Authors: Shah, Kunal G., Akundy, Gouri S., Iroh, Jude O.
Format: Article
Language:English
Subjects:
aluminum alloy
Chemistry
corrosion protection
cyclic voltammetry
electrodeposition
Exact sciences and technology
General and physical chemistry
polyaniline
Solutions
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Summary:A polyaniline coating was deposited onto an Al‐2024‐T3 substrate using oxalic acid as electrolyte. Both galvanostatic and potentiostatic techniques were used to deposit polyaniline on aluminum under aqueous conditions. The dc polarization studies showed that polyaniline coatings reduced the corrosion rate of Al‐2024‐T3 significantly by about threefold compared to that of the control. The passivation of the polyaniline‐coated aluminum was characterized by reflection absorption infrared spectroscopy and cyclic voltametry. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 1669–1675, 2002
ISSN:0021-8995
1097-4628
DOI:10.1002/app.10793