Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7734797 | Journal of Power Sources | 2015 | 39 Pages |
Abstract
A facile, environmentally friendly and low-cost synthesis strategy is demonstrated to fabricate a MoO2/N-doped graphene (MoO2/N-GNS) hybrid, in which MoO2 nanoparticles (NPs) are uniformly dispersed on N-GNS sheets by Mo-N chemical bond formed between MoO2 and N-GNS. As an anode material in lithium ion batteries, the MoO2/N-GNS hybrid possesses superior rate capability, excellent cycling performance as well as high reversible capacity. A reversible capacity of 1138.5 mA h gâ1 is maintained after 60 cycles at a current density of 100 mA gâ1, and even at a high current density of 1000 mA gâ1, the specific capacity of 873.7 mA h gâ1 can be obtained after 60 cycles. The superior electrochemical performance of the MoO2/N-GNS hybrid can be attributed to the synergistic effects of nitrogen-doping, flexible and conductive GNS, and MoO2 NPs.
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Authors
Xia Wang, Ying Xiao, Jianqiang Wang, Lingna Sun, Minhua Cao,