Abstract
In this work, a solvothermal method combined with a hydrothermal two-step method is developed to synthesize graphene–SnO2–TiO2 ternary nanocomposite, in which the nanometer-sized TiO2 and SnO2 nanoparticles form in situ uniformly anchored on the surface of graphene sheets, as high stability and capacity lithium-ion anode materials. Compared to graphene–TiO2, bulk TiO2 and grapheme–SnO2 composites, the as-prepared nanocomposite delivers a superior rate performance of 499.3 mAhg−1 at 0.2 C and an outstanding stability cycling capability (1073.4 mAhg−1 at 0.2 C after 50 cycles), due to the synergistic effects contributed from individual components, for example, high specific capacity of SnO2, excellent conductivity of 3D graphene networks.
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