本课题利用电化学沉积法合成了MnS2纳米片修饰的泡沫镍电极，并将其用于超级电容器。经过扫描电子显微镜（SEM）、透射电子显微镜（TEM）、X射线衍射（XRD）、能量散射X射线能谱（EDX）、X射线光电子能谱（XPS）等方法表征了MnS2/NF电极。从SEM和TEM中可以看出，MnS2的结构呈纳米片状，晶面间距为0.203 nm，排列整齐。同时泡沫镍的多孔结构，可以加快离子的运输速率，增强其电化学性能。用循环伏安法（CV）、恒电流充放电（GCD）、电化学阻抗（EIS）对电极的性能进行测试。10 mA/cm2下对比GCD图说明MnS2/NF电极的比电容值更大。1 mA/cm2下，MnS2/NF电极的比电容值达到了1.368 F/cm2，当电流密度增大了10倍，比电容值仍维持在原来的52.6%。在1000次充放电循环后的比电容值降低幅度较大，只有原来的38.1%，稳定性有待提高。通过研究表明MnS2/NF电极是有发展潜力的电极材料。

In this study, MnS2 nanosheets modified nickel foam electrode was synthesized by electrochemical deposition and applied to supercapacitors. MnS2/NF electrodes were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X ray diffraction (XRD), energy scattering X ray energy spectrum (EDX), X ray photoelectron spectroscopy (XPS) and other methods. It can be seen from SEM and TEM that the structure of MnS2 is nanocrystalline and the spacing between the planes is 0.203 nm, arranged neatly. Meanwhile, the porous structure of foamed nickel can accelerate the transport rate of ions and enhance its electrochemical performance. The performance of the electrode was tested by cyclic voltammetry (CV), galvanostatic charge discharge (GCD) and electrochemical impedance spectroscopy (EIS). GCD comparison with 10 mA/cm2 shows that the specific capacitance of MnS2/NF electrode is larger. Under 1 mA/cm2, the specific capacitance of MnS2/NF electrode reached 1.368 F/cm2, when the current density increased 10 times, and the specific capacitance value remained at 52.6%. After 1000 charging and discharging cycles, the specific capacitance decreases greatly, with only 38.1% of the original value, and the stability needs to be improved. The research shows that MnS2/NF electrode is potential electrode material.