期刊
NANO RESEARCH
卷 9, 期 3, 页码 612-621出版社
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-015-0941-5
关键词
cobalt phosphide; nanowires; anodes; lithium-ion battery
类别
资金
- Jiangsu Provincial Funds for Distinguished Young Scholars [BK20130046]
- NNSF of China [61525402, 21275076]
- Program for New Century Excellent Talents in University [NCET-13-0853]
- Qing Lan Project
- Synergetic Innovation Center for Organic Electronics and Information Displays
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Singapore MOE AcRF [RG2/13]
- Singapore National Research Foundation under CREATE program: EMobility in Megacities
The synthesis of a composite of cobalt phosphide nanowires and reduced graphene oxide (denoted CoP/RGO) via a facile hydrothermal method combined with a subsequent annealing step is reported. The resulting composite presents large specific surface area and enhanced conductivity, which can effectively facilitate charge transport and accommodates variations in volume during the lithiation/de-lithiation processes. As a result, the CoP/RGO nanocomposite manifests a high reversible specific capacity of 960 mA center dot h center dot g(-1) over 200 cycles at a current density of 0.2 A center dot g(-1) (297 mA center dot h center dot g(-1) over 10,000 cycles at a current density of 20 A center dot g(-1)) and excellent rate capability (424 mA center dot h center dot g(-1) at a current density of 10 A center dot g(-1)).
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