为提高锂离子电池负极材料的电催化析氢性能，以石墨烯为载体，采用水热法制备了还原氧化石墨烯（RGO）纳米片负载WS₂、SnS₂复合纳米材料。电化学性能测试结果表明，当SnS₂与WS₂的物质的量的比为1：2、电流密度为10 mA/cm²时，其在0.5 mol/L的H₂SO₄电解质溶液中的过电位为180 mV，Tafel斜率为129 mV/dec。SnS₂/RGO/WS₂复合纳米材料作为无贵金属的电催化剂具有巨大的潜力。

In order to improve the electrocatalytic hydrogen evolution performance of anode materials of lithium ion battery,the reduced graphene oxide (RGO) nanosheets loaded with WS₂ and SnS₂ composite nanomaterials are prepared via a simple hydrothermal method by using graphene as a carrier.The results from electrochemical performance test show that the overpotential of the prepared composite in a 0.5 mol·L^-1 H₂SO₄electrolyte solution is 180 mV and its Tafel slope is 129 mV·dec^-1 when the mass ratio of SnS₂ to WS₂ is 1:2,and the current density is 10 mA·cm^-2.The environmentally friendly synthesis method and excellent performance show that SnS₂/RGO/WS₂ composite nanomaterial has a great potential as an electrocatalyst without precious metals.

祁佳音(1994-),女,硕士研究生,研究方向为电化学析氢,2449877351@qq.com