In situ growth of CuO nanoparticles on graphene matrix as anode ...

CuO nanoparticles are directly formed on graphene nanosheets through the in situ chemical decomposition of Cu(NO3)(2)center dot 3H(2)O 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 660 mAh/g at a discharge current density of 100 mA/g and a good cycling ability