▎ 摘　　要

In this paper, bifunctional catalysts consisting of perovskite LaCo0.8Fe0.2O3 nanowires (LCFO NWs) with reduced graphene oxide (rGO) sheets were prepared for use in lithiumoxygen (LiO2) battery cathodes. The prepared LCFO@rGO composite was explored as a cathode catalyst for LiO2 batteries, resulting in an outstanding discharge capacity (ca. 7088.2 mAh g(-1)) at the first cycle. Moreover, a high stability of the O-2-cathode with the LCFO@rGO catalyst was achieved over 56 cycles under the capacity limit of 500 mAh g(-1) with a rate of 200 mA g(-1), as compared to the Ketjenblack carbon and LCFO NWs. The enhanced electrochemical performance suggests that these hybrid composites of perovskite LCFO NWs with rGO nanosheets could be a perspective bifunctional catalyst for the cathode oxygen reduction and oxygen evolution reactions in the development of next-generation LiO2 battery cathodes.