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The nanocomposites of SnO2-CuO/graphene are synthesized via a two-step method.CuO nanorods are firstly uniformly loaded on the graphene nanosheets,and then SnO2 nanoparticles are coated on CuO nanorods.SnO2-CuO/graphene nanocomposites exhibit high cyclability and capacity as anode of Li-ion battery.After 30 cycles,the capacity can maintain at 584 mAh g-1 at0.1C rate(10 h per half cycle).The high performance can be ascribed to the synergistic effect among SnO2 nanoparticles,CuO nanorods and graphene nanosheets.The results manifest that the nanocomposites of SnO2-CuO/graphene are very suitable for Li-ion battery anodes.
The nanocomposites of SnO2-CuO / graphene are molded via a two-step method. CuO nanorods are located uniformly loaded on the graphene nanosheets, and then SnO2 nanoparticles are coated on CuO nanorods.SnO2-CuO / graphene nanocomposites exhibit high cyclability and capacity as anode of Li-ion battery. After 30 cycles, the capacity can maintain at 584 mAh g-1 at 0.1C rate (10 h per half cycle). High performance can be ascribed to the synergistic effect among SnO2 nanoparticles, CuO nanorods and graphene nanosheets.The results manifest that the nanocomposites of SnO2-CuO / graphene are very suitable for Li-ion battery anodes.