Investigation on morphology controled transition metal sulphide based nanocomposites for high performance supercapacitor applications using aqueous and non aqueous electrolytes

Abstract

newline At the present time, transition metal sulfides (TMS) have emerged as promising newlinenanomaterials for supercapacitor (SC) applications due to their unique newlinephysicochemical properties. TMS materials exhibit high specific surface area, newlineexcellent electrical conductivity, and favorable redox activity, making them suitable newlinefor energy storage devices (ESD). Various TMS compounds, such as metal sulfides newline(e.g., cobalt sulfide (CoS), nickel sulfide (NiS), molybdenum sulfide (MoS2)) and newlinemixed metal sulfides (e.g., copper cobalt sulfide (Cu2CoS), nickel cobalt sulfide (Ni- newlineCo-S)), have been extensively investigated for SCs. TMS-based nanomaterials can be newlinesynthesized using different methods, including hydrothermal/solvothermal, chemical newlinevapor deposition (CVD), and electrodeposition techniques. The unique nanostructure newlineof TMS materials, such as nanoparticles, nanowires, nanosheets, and hierarchical newlinearchitectures, significantly enhances their electrochemical performance in SC. TMSbased newlineelectrodes can provide high specific capacitance (Cs), excellent rate capability, newlineand long cycle life, addressing the limitations of traditional SC materials.