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纳米CoFe_2O_4/GNS负极制备及其电化学性能研究
Preparation and Electrochemical Performances of Cofe_2O_4/GNS Nanocomposites as Anode Material for Lithium Ion Battery

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纳米CoFe_2O_4_GNS负极制备及其电化学性能....pdf (273.7Kb)
Date
2014-4-28
Author
蔡默超
蔡森荣
郑明森
董全峰
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  • 化学化工-已发表论文 [14236]
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Abstract
采用溶剂热法一步合成纳米尺寸COfE2O4/gnS复合材料(直径约为15 nM),其颗粒尺寸均一,且均匀分散于石墨烯表面.电化学测试结果表明,该复合物电极具有良好的循环和倍率性能,500 MA·g-1电流密度下100周期循环比容量稳定在709 MAH·g-1,容量保持率高达95.8%;2 A·g-1电流密度,其比容量仍高达482 MAH·g-1.
 
The Cofe2O4/GNS was synthesized by a simple one-pot solvothermal method.The results obtained by X-ray diffraction(XRD) and transmission electron microscopy(TEM) showed that the Cofe2O4 particles with sizes of 15 nm dispersed on the surface of graphene uniformly.Electrochemical tests indicated that the Cofe2O4/GNS nanocomposite exhibited excellent cyclic stability with almost 95.8% capacity retention after 100 cycles at the current density of 500 mA·g-1and delivered a high reversible capacity of 482 mAh·g-1at the current density of 2 A·g-1.
 
Citation
电化学,2014,(2):10-13
URI
https://dspace.xmu.edu.cn/handle/2288/107015

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