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NiMoO 4 /g-C 3 N 4 was fabricated by a hydrothermal method and used as an electrode material in a supercapacitor. The samples were characterized by XRD, FTIR, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) to study the physical and structural properties of the as-prepared NiMoO 4 /g-C 3 N 4 material. The electrochemical responses of pristine NiMoO 4 and the NiMoO 4 /g-C 3 N 4 nanocomposite material were investigated by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS). From the CD studies, the NiMoO 4 /g-C 3 N 4 nanocomposite revealed a higher maximum specific capacitance (510 Fg -1 ) in comparison to pristine NiMoO 4 (203 Fg -1 ). In addition, the NiMoO 4 /g-C 3 N 4 composite electrode material exhibited high stability, which maintained up to 91.8% capacity even after 2000 charge-discharge cycles. Finally, NiMoO 4 /g-C 3 N 4 was found to exhibit an energy density value of 11.3 Whkg -1 . These findings clearly suggested that NiMoO 4 /g-C 3 N 4 could be a suitable electrode material for electrochemical capacitors.

Nanofiber NiMoO4/g-C3N4 Composite Electrode Materials for Redox Supercapacitor Applications