Fig. 11

Supercapacitive properties of oriented H@TNAs with mixed crystal structures. a CV curves collected at the scan rate of 100 mV s⁻¹. Galvanostatic charge/discharge curves at current densities of b 0.025 and c 0.5 mA cm⁻². d Specific capacitance of as-prepared H@TNAs measured as a function of current density. e Nyquist plots of as-prepared H@TNAs. f Cyclic performance of as-prepared H@TNAs, insets are the galvanostatic charge/discharge curves of the first 5 cycles and the last 5 cycles