通过恒电流电解LiCl-KCl-KSCN-Na₂MoO₄-CoCl₂熔盐体系，制备出不同掺杂量花瓣状的Co/MoS₂。利用XRD、SEM、HRTEM和XPS等手段对Co/MoS₂进行表征，结果表明Co成功并均匀地掺杂入MoS₂晶体结构中。析氢性能测试结果表明，Co的掺杂量为14%时催化性能最好，在电流密度为10 mA/cm²时，Co/MoS₂-2的过电位为229.2 mV，塔菲尔斜率为0.195，双层电容大小为19.6 mF/cm²，同时拥有最小的电荷传输等效电阻（R_CT）3.6 Ω。熔盐电解法制备的Co/MoS₂催化剂实现了碱性环境中析氢（HER）催化活性及稳定性的同步提升，为催化剂的制备提供了新方法和新思路。

Petal-like Co/MoS₂ with different doping amount are prepared by constant-current electrolysis of LiCl-KCl-KSCN-Na₂MoO₄-CoCl₂ molten salt system.Co/MoS₂ are characterized by XRD,SEM,HRTEM,and XPS.Results indicate that Co has been successfully and uniformly doped into the crystal structure of MoS₂.The hydrogen evolution reaction (HER) performance test results indicate that the optimal catalytic performance is obtained as the doping amount of Co is 14%.At a current density of 10 mA·cm^-2,the overpotential of Co/MoS₂-2 is 229.2 mV with a Tafel slope of 0.195.Double-layer capacitance is 19.6 mF·cm^-2,and has the smallest charge transfer equivalent resistance (RCT) of 3.6 Ω.Co/MoS₂ catalyst prepared by molten salt electrolysis can improve the catalytic activity and stability of HER in alkaline environment simultaneously.

谢子杰(1996-),男,硕士研究生,主要研究方向为熔盐电解、电化学析氢,765673430@qq.com;柳玉辉(1988),女,博士,讲师,研究方向为放射性核素分离、熔盐电解,liuyuhuishui@163.com。