In situ growth of mesoporous NiO nanoplates on a graphene matrix as cathode catalysts for rechargeable lithium–air batteries Materials Letters, Available online 22 November 2014, Pages Danfeng Qiu, Gang Bu, Bin Zhao, Zixia Lin, Lin Pu, Lijia Pan, Yi Shi
Graphical abstractUsing graphene as a conductive matrix, the homogeneous distribution of NiO nanoplates was accomplished and volume changes in the nanoplates during charge–discharge process were effectively accommodated, resulting in the excellent electrochemical performance of the composites. The mesoporous structure of the NiO nanoplates was suitable for the transfer of O2 and Li2O2 produced by the electrochemical reaction. NiO/graphene nanocomposites are a candidate material for high-capacity, low-cost, and nontoxic cathode catalysts in rechargeable Li–air batteries.
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