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Jing Liu, Prof. Luhua Jiang, Qiwen Tang, Bingsen Zhang, Prof. Dang Sheng Su, Suli Wang and Prof. Gongquan Sun Coupling Effect Between Cobalt Oxides And Carbon For Oxygen Reduction Reaction ChemSusChem 5

Version of Record online: 9 NOV 2012 | DOI: 10.1002/cssc.201200563

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Same selectivity hides different pathways: The same apparent 4-electron process for the oxygen-reduction-reaction hides different pathways over carbon-supported cobalt oxide catalysts depending on the potential. At low overpotentials, the ORR intermediate HO2 preferably disproportionates to oxygen, whereas at high overpotentials the disproportionation and reduction reaction occur in parallel.

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