Abstract
In the present investigation, we have synthesized Ni
3
V
2
O
8
@GO composite by co-precipitation method and designed as a new anode material for supercapacitor applications. The phase formation and surface morphology of the Ni
3
V
2
O
8
and Ni
3
V
2
O
8
@GO composite were confirmed by XRD and FE-SEM measurements, respectively. It was observed that the synthesized Ni
3
V
2
O
8
@GO composite was found to have a small stone-like particle morphology. The electrochemical behavior of Ni
3
V
2
O
8
@GO composite as an electrode material for supercapacitor application was examined by electrochemical techniques. The obtained results showed that the Ni
3
V
2
O
8
@GO composite electrode exhibits maximum specific capacitance value 547 Fg
−1
at a scan rate of 5 mVs
−1
which was much superior than that of pure Ni
3
V
2
O
8
(118 Fg
−1
). The improved electrochemical behavior of the Ni
3
V
2
O
8
@GO composite may be due to its well crystalline nature and also offers more active sites for Faradic reactions, good conductivity, and rapid diffusion of the electrolyte ions. Furthermore, the fabricated Ni
3
V
2
O
8
@GO composite electrode possessed an outstanding cyclic stability and nearly 95% of original specific capacitance value was sustained after 1500 charge-discharge cycles at 5 Ag
−1
. This indicates that shaped the spherical Ni
3
V
2
O
8
@GO composite possessed excellent electrochemical property that favors it as an auspicious electrode candidates for supercapacitor applications.