▎ 摘　　要

ZnWO4, as an environment-friendly and economic material, has the potential for Li ion batteries (LIB) application. In this paper, a facile method has been developed to synthesize ZnWO4 supported on the reduced graphene oxide (RGO) to improve its LIB performance. The cuboid-like ZnWO4 nanocrystals are prepared by directly adding Na2WO4 powders into the graphene oxide/Zn aqueous solution followed by a hydrothermal treatment. The high-resolution TEM, XRD and XPS characterizations were employed to demonstrate structural information of the as-prepared ZnWO4/RGO hybrids carefully. Besides, we also discussed the LIB properties of the hybrids based on the detailed galvanostatic charge-discharge cycling tests. As a result, the specific capacity of the as-prepared ZnWO4/RGO hybrids reached more than 477.3 mA h g(-1) after 40 cycles at a current density of 100 mA g(-1) (only less than 159 mA g(-1) for bare ZnWO4). During the whole cyclic process, the coulombic efficiency steadily kept the values higher than 90%.