Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/67393
Title: Corrosion protection of mild steel by electroactive polyaniline coatings
Authors: Li, P.
Tan, T.C. 
Lee, J.Y. 
Keywords: A.c. impedance
Anti-corrosion coating
Corrosion protection
Passivation
Polyaniline and derivatives
Issue Date: 15-Jun-1997
Source: Li, P.,Tan, T.C.,Lee, J.Y. (1997-06-15). Corrosion protection of mild steel by electroactive polyaniline coatings. Synthetic Metals 88 (3) : 237-242. ScholarBank@NUS Repository.
Abstract: The ability of polyaniline (PANi) to act as a protective coating for mild steel corrosion in saline and acid was investigated by electrochemical impedance spectroscopy. The impedance behaviour is best explained by a mediated redox reaction in which PANi passivates the metal surface and reoxidizes itself by dissolved oxygen. The effectiveness of such a process, which also provides the repassivation of damaged films, is greater in acids. The performance of PANi is further enhanced by the presence of a top coat to increase the diffusional resistance for the corrosion species.
Source Title: Synthetic Metals
URI: http://scholarbank.nus.edu.sg/handle/10635/67393
ISSN: 03796779
Appears in Collections:Staff Publications

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