| 초록 |
We prepared activated carbon fibers(ACF) which was fluorinated by direct fluorination at room temperature. It is for electrode material of electric double layer capacitor (EDLC). Fluorination was proceeded at total 1bar of F2 and N2 gas and the partial pressure of F2 gas was 0.05, 0.1, 0.2 bar. After examining the surface properties and pore structure of the fluorinated ACF, we found that the surface contained more fluorine as the partial pressure of F2 gas increased, and total pore volume has increased compared to raw ACF. The electrochemical properties have also changed. Specific capacitance of EDLC made with fluorinated ACF at 0.05bar and 0.1bar of F2 gas has been improved compared to EDLC with raw ACF as electrode material. |
