Corrosion resistance of Cu2O and CuO on copper surfaces in aqueous media

S. B. Adeloju, Y. Y. Duan

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


Improvement of the corrosion resistance of copper has been accomplished by the deliberate formation of cuprous and cupric oxides on the metal surface, based on simple immersion acetate buffer or sodium hydroxide solution. Weight loss, potentiodynamic, and potentio-static polarisation measurements in sodium chloride, ammonia, and sodium bicarbonate solutions demonstrated that the presence of these oxides improved the corrosion resistance of copper considerably. The bicarbonate solution was also found to be a suitable medium for testing the stability of the oxide layers by the electrochemical methods. The presence of the oxide layer on copper surfaces was useful in improving its corrosion resistance in a Sydney tap water.

Original languageEnglish
Pages (from-to)309-314
Number of pages6
JournalBritish Corrosion Journal
Issue number4
Publication statusPublished - 01 Jan 1994


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