A conductive oxide as an O2 evolution anode for the electrolytic reduction of metal oxides

•La0.33Sr0.67MnO3 was electrochemically evaluated as an O2 evolution anode.•The La0.33Sr0.67MnO3 anode electrolytically reduced UO2 to U.•Conductive oxides can be used as O2 evolution anodes in electrochemical systems.

The feasibility of applying the conductive oxide, La0.33Sr0.67MnO3, as an O2 evolution electrode in an electrochemical system was investigated. The La0.33Sr0.67MnO3 anode was able to electrochemically reduce UO2 to metallic U in a Li2O-containing LiCl molten salt electrolyte with O2 evolution. Although the La0.33Sr0.67MnO3 anode remained stable during the reaction, its long-term stability should be further investigated.

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