In the present study, nanoparticles filled with honeycomb-like MnCo₂S₄ (MCS) nanostructures are prepared successfully on the surface of nickel foam using a simple and cost-effective chemical bath deposition method and can be used as a promising electroactive material for high performance supercapacitor applications. The electrochemical behavior of the as-prepared electroactive materials was studied by the cyclic voltammetry, galvanostatic charge/discharge, electron impedance spectroscopy. The crystalline phase, structure, morphology and composition of the as-prepared electroactive materials were analyzed by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. The performance of the as-prepared electroactive materials was carried out in a 3 M KOH electrolyte in the three-electrode system. The unique nanoparticle structures enable and provides the more efficient pathways for the rapid mobility of electrons and ions. As a result, the as-prepared binder-free MCS electrode exhibits a higher specific capacity of 129.7 mA h g⁻¹ at 1 A g⁻¹, superior rate capability of 88.51% after 4000 cycles and excellent cycling stability of 87.81% respectively, which are much higher than that of MCO electrode. These results reveal that the as synthesized MCS electrode found to be the most promising candidate for high-performance supercapacitor applications.

在本研究中，纳米颗粒填充了蜂窝状的MnCo ₂ S ₄（MCS）纳米结构是使用一种简单且经济高效的化学浴沉积方法成功地在泡沫镍表面上制备的，可以用作高性能超级电容器应用中有希望的电活性材料。通过循环伏安法，恒电流充/放电，电子阻抗谱研究了所制备的电活性材料的电化学行为。通过X射线衍射，场发射扫描电子显微镜，透射电子显微镜和X射线光电子能谱分析所制备的电活性材料的结晶相，结构，形态和组成。所制备的电活性材料的性能在三电极系统中的3 M KOH电解质中进行。独特的纳米颗粒结构为电子和离子的快速迁移提供并提供了更有效的途径。结果，所制备的无粘合剂的MCS电极表现出更高的比容量129.7 mA h g^-1 1 A G ^-1，4000次和分别的87.81％的优异的循环稳定性，这是比MCO电极的高得多的后88.51％优异的倍率性能。这些结果表明，合成的MCS电极被发现是高性能超级电容器应用的最有希望的候选者。