期刊
ELECTROCHIMICA ACTA
卷 231, 期 -, 页码 396-402出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2017.01.108
关键词
MoS2; carbon nanofiber; nanocomposite; anode; Li-ion battery
资金
- National Natural Science Foundation of China [51402236, 51472204, 51302219]
- Natural Science Foundation of Shannxi Province [2015JM5180]
- Research Fund of the State Key Laboratory of Solidification Processing (NWPU), China [123-QZ-2015]
- Key Laboratory of New Ceramic and Fine Processing (Tsinghua University) [KF201607]
- Seed Foundation of Innovation and Creation for Graduate Students in Northwestern Polytechnical University [Z2016067]
- Fundamental Research Funds for the Central Universities [3102015BJ(II)MYZ02]
A facile route for the uniform growth of MoS2 nanosheets on carbon nanofibers (CNFs) via a simple hydrothermal method is reported. The CNF network provides a porous and three-dimensional scaffold for the deposition of ultrathin MoS2 nanosheets. Benefiting from the highly conductive and porous CNFs as well as the nanostructured MoS2, the coaxial MoS2@CNFnanocomposites(*), when served as a binder-free and flexible anode for Li-ion batteries, could generate a synergistic effect to gain a high electrochemical utilization of MoS2. As a result, the nanocomposites exhibit a high reversible capacity of 846 mAh g(-1) at 100 mA g(-1), excellent high-rate capability (455 mAh g(-1) even at 2 A g(-1)), and good cycling retention with only 7.4% capacity degradation after 100 cycles. The superior Li-ion storage properties enable the nanocomposites to hold great potential application in high-performance Li-ion batteries. (C) 2017 Elsevier Ltd. All rights reserved.
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