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Publications

Rational design of electrochemically active polymorphic MnOx/rGO composites for Li+-rechargeable battery electrodes
SCI Impact Factor
5.16
Authors
J. Y. Ju, S. Ji, J. K. Kim, S. K. Choi, S. Unithrattil, S. S. Lee, Y. Kang, Y. Kim, W. B. Im*, and S. Choi
Journal
Ceram. Int.
Status
published
Vol
45
Page
9522-9528
Year
2019

Electrochemical behavior of different MnOx @reduced graphene oxide (rGO) composites derived from a MnO2/GO template are thoroughly investigated. As-prepared MnO2/GO mixture is gradually converted to MnO2/rGO and finally to Mn3O4/rGO composites under controlled post annealing conditions. The semispherical Mn3O4 crystalline compound anchored composite exhibits stable electrode performances, including both the Li+ anode and the Li+-air cathode catalyst, induced by the electrochemically favorable composite with an effective large contact area between the active materials and the electronic conductive rGO. It is such a meaningful to suggest the facile and controllable synthetic procedures for obtaining Li-rechargeable electrodes with a MnOx nanoparticle-incorporated composites for the highly reactive lithiation/delithiation electrochemical reactions.