fig8

Figure 8. Electrochemical profile of PPy@CNTs@TrW thick electrode. (A) CV curves of PPy@CNTs@TrW at scan rate increased from 10 to 100 mV s^-1. (B) GCD curves of PPy@CNTs@TrW at different current densities. (C) Correlation between areal and volumetric specific capacitance and current density of CNTs@TrW and PPy@CNTs@TrW. (D) EIS profile of CNTs@TrW, PPy@TrW, and PPy@CNTs@TrW having full-scale graph and zoomed one to show semicircle. (E) Ragone plot of our thick PPy@CNTs@TrW electrodes with typical carbon electrodes in the literature. (F) Capacitive retention over charge-discharge cycles and plot of gravimetric energy density against gravimetric power density.