Evaluation of the corrosion protection behaviour of poly(neutral red) films on passivated copper
Source abstract
Abstract
The corrosion protection behaviour of poly(neutral red) (PNR) films on copper electrodes has been investigated using open circuit measurements, Tafel plots and electrochemical impedance spectroscopy. Pure copper electrodes were initially passivated in sodium oxalate, salicylate or hydrogen carbonate solution, to inhibit copper dissolution at potentials where neutral red monomer oxidation occurs, before its electropolymerization by potential cycling. The corrosion inhibition by these films was tested in 0.10 M KCl solution. It was found that, after long immersion times (96 h), the best protection efficiency was with PNR films formed on copper passivated in oxalate solution.
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Research context
OpenAlex topics: Conducting polymers and applications · Corrosion Behavior and Inhibition · Analytical Chemistry and Sensors
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