| 초록 |
The supercapacitors are widely investigated as electrochemical energy storage devices because of their high power density and life cycle. Recently, MXene is investigated as a promising electrode material for supercapacitors due to its unique structure and excellent electrical conductivity. In this study, a series of MXene/PEA-derived hybrid carbon nanofibers (MCNFs) were fabricated by a facile method of electrospinning, dip-coating, and carbonization. The microstructural features of MCNFs were characterized by aids of SEM, EDS, and XRD. The electrical and electrochemical properties of MCNFs were investigated by using conductivity measurement, cycle voltammetry, and galvanostatic charge-discharge test. As a result, MCNF electrodes were characterized to have a specific capacitance of 689 F/g at a current density of 1 A/g, 93% capacitance retention after 3000 cycles, and energy density of 189.7 Wh/kg. |
