| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 봄 (04/07 ~ 04/09, 대전컨벤션센터) |
| 권호 |
46권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Facile Fabrication of Polyaniline Films with Hierarchical Porous Networks for Enhanced Electrochemical Activity |
| 초록 |
A conducting polymer with well-defined porous structures would be preferred as an electrode of a capacitor. Upon crosslinking with phytic acid, polyaniline (PANI) forms a 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 that the composition in preparation has a significant influence on the morphology of the PANI hydrogel. As ratio of initiator/crosslinker increase or monomer decreases, the PANI hydrogel has denser morphology with decreased pore size and high volumetric surface area, resulting in higher conductivity. So, in the 3-electrode system, the PANI hydrogel electrode prepared at optimized compositions exhibited 105.6 F/cm3 of capacitance with ~50% retention rate after 5000cycles. Finally, we fabricated a practical capacitor with two symmetric PANI hydrogel electrodes, which shows 271.4 F/cm3 of capacitance with improved cycle stability of 80% retention rate. |
| 저자 |
김지혜1, 구형준1, 김성곤2, 소주희3, 윤현식1, 최종훈4
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| 소속 |
1서울과학기술대, 2전북대, 3한국생산기술(연), 4중앙대 |
| 키워드 |
Polyaniline; capacitor; hydrogel
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| E-Mail |
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