| 초록 |
In this work, nitrogen and fluorine co-doped mesoporous carbon nanofibers (NFMCNFs) were fabricated via hydrothermal treatment for structural modification to create porosity and vacuum plasma process for introducing heteroatoms into the carbon lattice of mesoporous carbon nanofibers. Applied to supercapacitor devices, the NFMCNFs exhibited a remarkable EDLC performance of 252.6 F g–1 at 0.5 A g–1 in a 1 M H2SO4 electrolyte. Additionally, all-solid-state flexible symmetric supercapacitors were assembled with a high specific capacitance of 58.1 F g–1 at 0.5 A g–1 and outstanding long-term cycle stability over 20,000 cycles. Remarkably, the SSCs also exhibited high energy and power densities of 8.07 W h kg–1 and 248 W kg–1, respectively. This dynamic porous structure and heteroatom co-doping based carbon material provides a sensational approach for designing energy storage systems. |
