【摘要】 本研究采用溶剂热法结合高温硫化技术成功制备了具有正十二面体结构的CoS₂/C复合材料。通过表征手段揭示了材料的微观结构，并展示了其较大的比表面积和丰富的介孔结构。在三电极系统测试中，CoS₂/C复合材料表现出良好的循环伏安特性、高比电容（126.2 mAh/g,即1 135.6 F/g@1 A/g）、低阻抗及优异的长循环性能。CoS₂/C复合材料与活性炭组装的非对称型超级电容器同样表现出色，在1 A/g下比容量达93.6 F/g。该超级电容器装置在800 W/kg功率密度下实现了33.3 Wh/kg的能量密度。研究结果表明，CoS₂/C材料在超级电容器电极材料领域展现出优异的电化学性能，具有广阔的应用前景。更多还原

【Abstract】 This study successfully synthesized CoS₂/C composites with a truncated dodecahedral structure using a solvothermal synthesis combined with high-temperature sulfuration method. Characterization techniques revealed the material’s microstructure, showcasing its large specific surface area and abundant mesoporous structure. In a three-electrode system test, the CoS₂/C material exhibited favorable cyclic voltammetry curves, high specific capacitance（126.2 mAh/g, equivalent to 1 135.6 F/g at 1 A/g）, low impedance, and exceptional long-cycle efficiency. The asymmetric supercapacitor assembled with activated carbon also performed well, achieving a specific capacitance of 93.6 F/g at 1 A/g. This supercapacitor device delivered an energy density of 33.3 Wh/kg at a power density of 800 W/kg. The results indicate that the CoS₂/C material exhibits outstanding electrochemical performance in the field of supercapacitor electrode materials, holding promising applications.更多还原