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Title: Electrochemical synthesis and corrosion behavior of polyaniline-benzoate coating on copper
Authors: Gvozdenović M.
Jugovic, Branimir
Stevanovic J.
Grgur, Branimir
Trišović, Tomislav
Knezevic Jugovic, Zorica
Journal: Synthetic Metals
Issue Date: 1-Jul-2011
Abstract: Electrochemical polymerization of polyaniline (PANI) coating on copper electrode was performed galvanostatically in the current density range between 0.50 and 1.25 mA cm-2, from aqueous solution of 0.3 mol dm -3 sodium benzoate and 0.2 mol dm-3 aniline. The corrosion behavior of PANI coated copper and copper electrode exposed to 0.5 mol dm -3 sodium chloride solution was investigated by potentiodynamic and electrochemical impedance spectroscopy techniques. It was observed that thin PANI (5 μm) coating had provided efficient protection (∼96%) to copper in 0.5 mol dm-3 sodium chloride solution. Unusual initial impedance behavior to that normally observed with conventional organic coatings was attributed to dedoping of benzoate anions from the polymer coating. © 2011 Elsevier B.V. All rights reserved.
Type: Article
DOI: 10.1016/j.synthmet.2011.04.029
ISSN: 03796779
SCOPUS: 79960012036
Appears in Collections:Faculty of Agronomy, Čačak
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