| 초록 |
Conducting polymer is actively studied as an electrode of a capacitor. Since electrode is place where electrochemical reaction occurs, an electrode with porous structures would be preferred. Upon crosslinking, PANI forms a conducting hydrogel with a 3-D porous structure. In this study, we checked the effect on its pore morphology and electrical property of PANI with various compositions. It turns out the composition in preparation has a significant influence on the morphology of the PANI. As initiator/crosslinker increase or monomer decreases, the PANI has decreased pore size, resulting in higher conductivity. So, this PANI hydrogel with 3D porous morphology can serve as an efficient electrode of an electrochemical capacitor, and the PANI hydrogel electrode prepared at optimized compositions exhibited 105.6 F/cm3 of capacitance. Finally, we fabricated a capacitor with two symmetric PANI electrodes, which shows 271.4 F/cm3 of capacitance with cycle stability of 80% retention rate. |
