Figure 10
GCD measurements were performed in a two-electrode configuration. (a) GCD curves of selected materials recorded in 0.1 M KOH at the current density of 2 A g−1. (b) Ragone plots for selected materials. (c) GCD curves of RFM-CNO-C recorded in 0.1 M KOH at the different current densities: (1) 9; (2) 8; (3) 7; (4) 6; (5) 5; (6) 4; (7) 3; and (8) 2 A g−1. (d) Capacitance retention as a function of cycle number for RFM-CNO-C in 0.1 M KOH at the current density of 9 A g−1. Inset: First 10 galvanostatic GCD cycles recorded for RFM-CNO-C.
