| 초록 |
An electrode for electric double layer capacitor (EDLC) is prepared from pitch-based activated carbon fibers (ACFs) modified by fluorination and oxyfluorination. The fluorination and oxyfluorination of pitch-based ACFs are carried out with F2:N2 ratios of 1:9, 2:8, 3:7 and F2:O2 ratios of 3:7, 5:5, 7:3, respectively. Textural and electrochemical properties of the modified pitch-based ACFs are evaluated by XPS, BET and cyclic voltammetry. The cyclic voltammetry of the fluorinated and oxyfluorinated pitch-based ACFs electrodes are performed in a potential range of 0 – 1 V at different scan rates of 5 and 50 mV/s in 1 M H2SO4 electrolyte. |
