Fig. 6

a Cyclic voltammograms of the 1%/VS₂ electrode recorded at different scan rates ranging from 2 to 100 mV/s scan rate. b Areal capacitance of the 1%/VS₂ electrode as a function of scan rates. c The charge/discharge profiles of the 1%/VS₂ electrode at various current densities recorded in the 0 to 0.4 V vs Ag/AgCl potential window. d The capacitances of the 1%/VS₂ electrode calculated at a current density ranging from 0.2 to 1.7 mA/cm². e The Nyquist plot of the 1%/VS₂ electrode and the inset shows the equivalent circuit used to fit the impedance data. f The Bode phase and magnitude plot for the 1%/VS₂ electrode