Title of article
Gold autodeactivation during oxygen electroreduction studied by electrochemical impedance spectroscopy
Author/Authors
Tripachev، نويسنده , , Oleg and Bogdanovskaya، نويسنده , , Vera and Tarasevich، نويسنده , , Mikhail and Andoralov، نويسنده , , Viktor، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2012
Pages
4
From page
21
To page
24
Abstract
The deactivation of a polycrystalline gold electrode is observed during oxygen electroreduction reaction (ORR) in basic medium. At that, the cause of the process is chemical decomposition of the ORR intermediate and blocking of active sites of the electrode surface by hydroxyl radical-like species. The deactivation mechanism is discussed.
Keywords
Autodeactivation , Gold , Superoxide , Oxygen reduction reaction , Catalysis , Impedance
Journal title
Journal of Electroanalytical Chemistry
Serial Year
2012
Journal title
Journal of Electroanalytical Chemistry
Record number
1676143
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