Nanofiber NiMoO 4 /g-C 3 N 4 Composite Electrode Materials for Redox Supercapacitor Applications

• Published in: Nanomaterials (Basel, Switzerland) Switzerland), 2020-02, Vol.10 (2)
• Main Authors: Thiagarajan, Kannadasan, Bavani, Thirugnanam, Arunachalam, Prabhakarn, Lee, Seung Jun, Theerthagiri, Jayaraman, Madhavan, Jaganathan, Pollet, Bruno Georges, Choi, Myong Yong
• Format: Article
• Language: English
• ISSN: 2079-4991; 2079-4991

NiMoO /g-C N 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 /g-C N material. The electrochemical responses of pristine NiMoO and the NiMoO /g-C N nanocomposite material were investigated by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS). From the CD studies, the NiMoO /g-C N nanocomposite revealed a higher maximum specific capacitance (510 Fg ) in comparison to pristine NiMoO (203 Fg ). In addition, the NiMoO /g-C N composite electrode material exhibited high stability, which maintained up to 91.8% capacity even after 2000 charge-discharge cycles. Finally, NiMoO /g-C N was found to exhibit an energy density value of 11.3 Whkg . These findings clearly suggested that NiMoO /g-C N could be a suitable electrode material for electrochemical capacitors.