Mn <inf>3</inf> O <inf>4</inf> Nanosheet and GNS– Mn <inf>3</inf> O <inf>4</inf> Composite as High-Performance Anode Materials for Lithium-Ion Batteries

Publication Type:
Journal Article
Citation:
Arabian Journal for Science and Engineering, 2017, 42 (10), pp. 4281 - 4289
Issue Date:
2017-10-01
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© 2017, King Fahd University of Petroleum & Minerals. Nanostructured transitional metal oxides have received more and more attention as the electrode materials for lithium-ion batteries to achieve high specific capacity and good safety performance. In this paper, a graphene nanosheet-supported Mn 3 O 4 nanoparticles (Mn 3 O 4 –GNS) composite, as well as Mn 3 O 4 nanosheet, were synthesized via a facile hydrothermal method. The Mn 3 O 4 –GNS composite exhibits good electrochemical performances with high reversible specific capacity (an initial charge capacity of 969 mAh g - 1 at 93.6 mA g - 1 ), good cycling stability (a retained capacity of 646 mAh g - 1 after 60 cycles) and rate capability when used as the anode material for LIBs. The enhanced electrochemical performance could be attributed to the nanoscaled particles of Mn 3 O 4 , the buffer and confine effects of graphene nanosheets (GNSs) and the distinctive synergistic effect between two components of GNS and metal oxides.
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