1. In situ growth of CuO nanoparticles on graphene matrix as anode material for lithium-ion batteries.
- Author
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Qiu, Danfeng, Zhao, Bin, Lin, Zixia, Pu, Lin, Pan, Lijia, and Shi, Yi
- Subjects
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COPPER oxide , *NANOPARTICLES , *GRAPHENE , *ANODES , *LITHIUM-ion batteries , *LITHIATION - Abstract
Abstract: CuO nanoparticles are directly formed on graphene nanosheets through the in situ chemical decomposition of Cu(NO3)2·3H2O and are anchored tightly on the graphene surface. The lithiation-induced strain is naturally accommodated, owing to the constraint effect of the graphene matrix. Electrochemical characterization shows that CuO nanoparticles anchored on graphene sample exhibits a high capacity of about 660mAh/g at a discharge current density of 100mA/g and a good cycling ability. During the charge–discharge process, graphene nanosheets not only served as a three-dimensional conductive network for CuO nanoparticles, but also improve the detachment and agglomeration of CuO nanoparticles. This CuO/graphene nanocomposite displays superior Li-battery performance with large reversible capacity, excellent cyclic performance, and good rate capability. [Copyright &y& Elsevier]
- Published
- 2013
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