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Abstract:
Molybdenum disulfide (MoS2) has been widely deemed as an attractive anode candidate for rechargeable lithium -ion batteries (LIBs) on account of its apparently high capacity and intriguing 2-dimensional layered structure. In our work, the growth of MoS2 nanoflowers with an expanded interlayer spacing onto nitrogen-doped reduced graphene oxide has been successfully performed by using an effective poly(vinylpyrrolidone) (PVP)-guided assembly route. The theoretical and experimental results indicate that PVP, as a linker, is a major contribution, both in regulating the microstructure of MoS2 nanoflowers and improving the electrochemical properties of the flower-like MoS2/N-graphene (F-MoS2/NG) composite. When utilized as anode materials, the as-made F-MoS2/NG composite shows a boosted electrochemical performance for reversible lithium storage. It delivers a high reversible capacity of 1060 mAh/g at 100 mA/g even after 150 cycles, which is much higher than 416 mAh/g of the control MoS2/G electrode. The kinetics analysis reveals that the remarkable rate capability of FMoS2/NG is mainly ascribed to a pseudocapacitive process, which is rendered by its unique architecture including welldefined MoS2 nanoflowers, the doping of nitrogen onto graphene, and the enhanced synergistic effect between them.
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CHEMELECTROCHEM
ISSN: 2196-0216
Year: 2018
Issue: 16
Volume: 5
Page: 2263-2270
3 . 9 7 5
JCR@2018
3 . 5 0 0
JCR@2023
JCR Journal Grade:2
CAS Journal Grade:3
Cited Count:
WoS CC Cited Count: 26
SCOPUS Cited Count: 26
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 6
Affiliated Colleges: