| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Intrinsically Microporous Ion-Pair Coordinated Membranes for HT-PEMFCs |
| 초록 |
Low-temperature polymer electrolyte membrane fuel cells (LT-PEMFCs) using Nafion operates at a relatively low operating temperature (60-80°C) and a full hydration condition. HT-PEMFC is operable at high temperatures (140-180°C), but requires anhydrous conditions to avoid loss of doped phosphoric acid (PA). In this study, polymer membranes designed through with intrinsic microporosity were synthesized through super acid polycondensation. We demonstrated that high proton conductivity(PXBP-C5N, 106.33 mS cm-1 at 180℃) is obtained by forming phosphoric acid filled ion-channels within the interconnected microporous structure. Moreover, ion-pair coordinated PIMs are fabricated by methylation of PIMs to improve PA retention even under humidified conditions. It is suggested that the water tolerance of ion-pair coordinated PIMs is improved and can be operated under various conditions regardless of humidification and operating temperature. |
| 저자 |
구진숙1, 이성수2, 황승상3, 이정현1
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| 소속 |
1고려대, 2한국과학기술원, 3한국과학기술(연) |
| 키워드 |
PIMs; Ion-pairs; proton conductivity; proton exchange membrane; fuel cell; HT-PEMFC
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| E-Mail |
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