fig8

Figure 8. (A) Schematic illustration of the electrochemical process; (B) CV curves of PANI/m-CFs at different scan rates; (C) GCD profiles of PANI/m-CFs at different current densities; (D) Areal specific capacitance and coulombic efficiency of PANI/m-CFs; (E) Mass specific capacitance of PANI/m-CFs; (F) Corresponding areal energy density and areal power density derived from three-electrode measurements; (G) Linear fitting of the absolute peak current density versus scan rate for determining the b-values; (H) Potential-resolved Dunn analysis at a scan rate of 50 mV/s, showing the diffusion-controlled and capacitive current contributions; (I) Relative surface-controlled and diffusion-associated fractions at scan rates of 10-50 mV/s. PANI: Polyaniline; m-CFs: modified cellulose fibers; GCD: galvanostatic charge-discharge; CV: cyclic voltammetry.