超级电容器
材料科学
纳米纤维
复合数
氧化还原
电极
复合材料
纳米技术
电化学
化学
冶金
物理化学
作者
Kannadasan Thiagarajan,Thirugnanam Bavani,Prabhakarn Arunachalam,Seung Jun Lee,Jayaraman Theerthagiri,Jaganathan Madhavan,Bruno G. Pollet,Myong Yong Choi
出处
期刊:Nanomaterials
[Multidisciplinary Digital Publishing Institute]
日期:2020-02-23
卷期号:10 (2): 392-392
被引量:89
摘要
NiMoO4/g-C3N4 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 NiMoO4/g-C3N4 material. The electrochemical responses of pristine NiMoO4 and the NiMoO4/g-C3N4 nanocomposite material were investigated by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS). From the CD studies, the NiMoO4/g-C3N4 nanocomposite revealed a higher maximum specific capacitance (510 Fg−1) in comparison to pristine NiMoO4 (203 Fg−1). In addition, the NiMoO4/g-C3N4 composite electrode material exhibited high stability, which maintained up to 91.8% capacity even after 2000 charge-discharge cycles. Finally, NiMoO4/g-C3N4 was found to exhibit an energy density value of 11.3 Whkg−1. These findings clearly suggested that NiMoO4/g-C3N4 could be a suitable electrode material for electrochemical capacitors.
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