The role of oxalate ions in the coverage of mild steel with polypyrrole

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Asan A., Kabasakaloglu M., Aksu M.

RUSSIAN JOURNAL OF ELECTROCHEMISTRY, vol.41, no.2, pp.154-158, 2005 (SCI-Expanded)

• Publication Type: Article / Article
• Volume: 41 Issue: 2
• Publication Date: 2005
• Doi Number: 10.1007/s11175-005-0026-y
• Journal Name: RUSSIAN JOURNAL OF ELECTROCHEMISTRY
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Page Numbers: pp.154-158
• Gazi University Affiliated: No

Abstract

In this study, the coverage conditions of mild steel with polypyrrole (PPy) were investigated. It was observed that the surface was passive up to 0.6 V, to the oxidation potential of pyrrole in oxalic acid solution. The PPy coverage was obtained with 0. 1 M oxalic acid + 0.2 M pyrrole. A passivity mechanism supported with current potential curves was proposed. The PPy deposition was also investigated according to pyrrole and oxalic acid concentrations by successive voltarnmetric scans.