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Silicon/graphene/carbon composite nanofibers (Si@RGO@C NFs) with a hierarchical structure are prepared by encapsulating graphene coated Si nanoparticles in the interconnected carbon nanofibers based on an electrospinning technology. For the hierarchical structure, Si nanoparticles are embedded in the graphene and the core-shell structure formed, which is further wrapped by the carbon nanofibers. As...
Novel cubic aggregated CoFe2O4 nanoparticles are successfully synthesized by hydrothermal method. Electrochemical results show that the CoFe2O4 nanoparticles exhibit good cycling performance and excellent rate capability. The first discharge and charge capacities of these nanoparticles are 1672.8mAhg−1 and 1309.1mAhg−1, respectively, with an initial coulombic efficiency of 78.3%. The electrode can...
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