| 학회 |
한국화학공학회 |
| 학술대회 |
2021년 봄 (04/21 ~ 04/23, 부산 BEXCO) |
| 권호 |
27권 1호, p.135 |
| 발표분야 |
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, 소주희2, 김성곤3, 윤현식1, 최종훈4
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| 소속 |
1서울과학기술대, 2한국생산기술(연), 3전북대, 4중앙대 |
| 키워드 |
지속가능고분자 |
| E-Mail |
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| 원문파일 |
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