Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/27500
Title: Polyphenazine films as inhibitors of copper corrosion
Authors: Romeiro, Andreia 
Gouveia-Caridade, Carla 
Brett, Christopher M. A. 
Keywords: Polyphenazine films; Redox polymer; Corrosion protective coatings; Copper; Electrochemical impedance spectroscopy
Issue Date: 1-Jan-2013
Publisher: Elsevier
Citation: ROMEIRO, Andreia; GOUVEIA-CARIDADE, Carla; BRETT, Christopher M. A. - Polyphenazine films as inhibitors of copper corrosion. "Journal of Electroanalytical Chemistry". ISSN 1572-6657. Vol. 688 (2013) p. 282-288
Serial title, monograph or event: Journal of Electroanalytical Chemistry
Volume: 688
Abstract: The polyphenazines poly(brilliant cresyl blue) (PBCB), poly(Nile blue A) (PNB) and poly(safranine T) (PST) have been investigated as corrosion protection films on copper electrodes by open circuit measurements, Tafel plots and electrochemical impedance spectroscopy, complemented by scanning electron microscopy. Pure copper electrodes were initially passivated in sodium oxalate or hydrogen carbonate solutions, to inhibit copper dissolution at potentials where phenazine monomer oxidation occurs, before electropolymerisation by potential cycling. The corrosion inhibition of these films was tested in 0.10 M KCl solution. It was found that, after long immersion times, the best protection efficiency was with PNB films formed on copper passivated in sodium hydrogen carbonate solution.
URI: http://hdl.handle.net/10316/27500
ISSN: 1572-6657
DOI: 10.1016/j.jelechem.2012.07.033
Rights: openAccess
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais

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