Electrochemical Properties of Superoxide Ion in Aprotic Media*
Y. Wei, X. Dang, and Sh. Huz
Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
Received May 12, 2003
Abstract—The electrochemical response of the oxygen/superoxide ion (O2/
) couple at glassy carbon elec-
trode in N,N-dimethylformamide (DMF) is investigated by cyclic voltammetry. The electrode reaction mecha-
nisms of superoxide ion with hydroquinone and ethyl acetate are discussed in detail. The macroscale generation
of superoxide ion is carried out by means of controlled-potential electrolysis. The UV spectrum of superoxide ion
in DMF, obtained for the first time, exhibits a single absorption band with 
max at 273 nm within 190–500 nm.
Key words: superoxide ion, reaction mechanism, N,N-dimethylformamide, cyclic voltammetry
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