Abstract
In this work, a facile strategy for embedding graphene (GR) nanosheets into carbon-coated MoSe2 (MoSe2@C@GR) hybrid nanofibers has been developed by a simple electrospinning route. One dimensional nanofibers have excellent structural stability resulting from strong tolerance to stress change. The highly conductive graphene nanosheets play an excellent coating effect on MoSe2 to inhibit the growth of MoSe2 nanosheets on the nanofiber surface and enhance the conductivity of hybrid nanofibers, which substantially improves the rate performance and cycle stability of carbon-coated MoSe2 (MoSe2@C) nanofibers. In particular, the MoSe2@C@GR electrode delivers a high discharge capacity of 366.9 mAh g−1 after 200 cycles at 0.2 A g−1, meanwhile exhibits superior rate performance. The analysis of Nyquist plots reveals that the addition of graphene nanosheets can greatly strengthen the kinetics of electrode reaction and the electrochemical activity.
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