Electrochemical behaviour of oxygen reduction on polymer carbon electrodes in alkaline media

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Sequeira, CAC (Author) Other

Journal

The Journal is awaiting validation by the Administrative Services.

Title: RUSSIAN JOURNAL OF ELECTROCHEMISTRY

Vol. 48

Pages: 727-737

ISSN: 1023-1935

Indexing

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Other information

Authenticus ID: P-002-8CM

DOI: 10.1134/s1023193512070087

Abstract (EN): The preparation of polymer carbon electrocatalysts by the controlled pyrolysis of polyfurfuryl alcohol polymer is described. The potentiostatic method was used to study the electrochemical behaviour of the oxygen reduction reaction on the prepared catalyst electrodes in potassium hydroxide electrolyte. A pure polymer carbon electrode and a cobalt chloride doped polymer carbon electrode were shown to be active in oxygen reduction, but the electrode containing cobalt chloride seemed the most active. The main reaction product at the pure polymer electrode is hydrogen peroxide, involving two electrons, whereas at a poly(CoCl2) electrode the reduction process reaches partly its ultimate state, and involves at most three electrons.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11