We depict a facile as well as an economical one-step hydrothermal method for the first time to synthesize a hierarchical three-dimensional (3D) flower-like structure of Molybdenum (Mo) particles decorated nickel...

Facile assembly of robust electrodes with excellent electrochemical performances is still challenging yet consequential for supercapacitor applications. Although molybdenum disulfide (MoS 2 ) has versatile properties, restacking of molybdenum layers and poor intrinsic conductivity restrict to explore it for electrochemical applications. Herein to address these challenges, we utilized candle soot derived carbon to fabricate MoS 2 /Carbon (C) nanocomposite through a simple hydrothermal synthesis method. The prepared composite delivered specific capacitance of 452.7 Fg À 1 at a current density of 1 Ag À 1 in 3 M KOH electrolyte and profound capacity retention and coulombic efficiency of 94.8% and 93.7% after 10,000 chargedischarge cycles respectively. Furthermore, we fabricated asymmetric supercapacitor device using MoS 2 /C as the positive electrode and candle soot derived carbon as a negative electrode (MoS 2 /C // C) which showed excellent energy and power density values with an impressive capacitance retention of 100% over 10,000 cycles. The exceptional electrochemical performance of MoS 2 /Carbon composite thus indicates the potential application for high-performance supercapacitor devices.

No abstract