fig8
Figure 8. Capacitance performance (SC) assessed through a three-electrode configuration. (A) GCD profiles of eight NOPC samples at 0.5 A·g-1 and (B) at 1.0 A·g-1 in electrochemical experiments; (C) Test and predicted values of SC about eight NOPC samples in verification experiments and prediction accuracy. SC: Specific capacitance; GCD: galvanostatic charge-discharge; NOPC: nitrogen, oxygen co-doped porous carbon materials.