Figure 5.

(a) Synthetic route to the fabrication of nitrogen-doped mesoporous carbon spheres (NMCS) followed by their activated products (NMCS−A) and electrochemical performances; (b) CV curves recorded at 10 mV s⁻¹ as typical example, (c) CD curves at 1 A g ⁻¹. (d) Calculated capacitance vs. current densities for different samples, and (e) Specific surface area normalized capacitance corresponding to 1 A g⁻¹ current density vs. pore size. Reproduced from Reference [133]. Copyright American Chemical Society, 2017.