Enhanced Electrochemical Proficiency of NiCoS/MoS/MWCNT Hybrid Electrodes for Superior Energy Storage Applications.

The development of electrode materials with outstanding electrochemical performance is critical to meeting the demand for supercapacitors (SCs). Using metal sulfides with carbon-based materials is an efficient method to address the requirements for high-performance electrochemical energy storage. Here, we synthesize a NiCoS/MoS/MWCNT composite using a hydrothermal technique. The prepared electrode material's structural, surface morphology, chemical composition, and electrochemical characteristics were analyzed. The NiCoS/MoS/MWCNT composite has a higher specific capacitance of 1090 F/g at 1 A/g and excellent capacitance retention of 90% after 10,000 cycles. Furthermore, the asymmetric SC has been successfully assembled by utilizing activated carbon (AC) for the negative electrode and NiCoS/MoS/MWCNT for the positive electrode. The constructed NiCoS/MoS/MWCNT//AC asymmetric SC (ASC) has an excellent energy density (ED) of 23.73 Wh/kg and a power density (PD) of 749.5 W/kg at 1 A/g. The study found that the NiCoS/MoS/MWCNT composite is an attractive electrode compound for SCs.