▎ 摘　　要

Flower-like NiS-Ni3S4/stereotaxically constructed graphene (NiS-Ni3S4/SCG) composite is synthesized by a hydrothermal method. When evaluated as anode materials for sodium ion battery, the material still retains a discharge capacity of 322.9 mA h g(-1) with a coulombic efficiency near 100% after 2000 cycles at 10 A g(-1), which corresponds to 69.2% of the 2nd discharge capacity. It is found that the SCG plays a positive role in improving electrochemical performance of NiS-Ni3S4 because it serves as an efficient 3D conductive network to enhance electronic conductivity and an elastic matrix to buffer volume expansion. (C) 2018 Elsevier B.V. All rights reserved.