A review on synergistic effect on Cobalt Sulfide–based Nanomaterials electrode for Supercapacitor application

Abstract

The growing global demand for energy has intensified the need for advanced and efficient energy storage technologies. Supercapacitors and batteries have gained considerable interest due to their essential role in modern energy storage systems. The effectiveness of these devices largely depends on the characteristics of the electrode materials, such as high specific capacitance, superior electrical conductivity, large surface area, abundant availability, and favorable electrochemical properties. While cobalt-based nanomaterials offer high conductivity, abundant resources, and strong capacitance performance for supercapacitor electrodes, limitations such as structural degradation and insufficient power density remain unresolved. This paper reviews on advances in cobalt Sulfide based nanomaterials electrode materials for supercapacitors, with a focus on their preparation methods, electrochemical performance and properties. It focuses on methods to enhance the electrochemical performance of these materials. It shows that synergistic effect can improve the morphology of nanomaterials can significantly boost their performance, with mesoporous structures. Key findings from the literature on batteries and supercapacitors are summarized, highlighting Cobalt sulfide-based materials integrated with carbon nanotubes, graphene, reduced graphene oxide, MAX phase (Class of 2D inorganic compounds comprising atomically thin layers of transition metal carbides, nitrides, or carbonitrides) shortly known as MXene, Metal Organic Framework(MOF), nickel foam and metal elements such as nickel, manganese, etc.