| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO)) |
| 권호 |
23권 1호 |
| 발표분야 |
우수논문(구두)_박사과정 |
| 제목 |
Composite membranes based on modified graphene oxide and polybenzimidazole showing improved physicochemical properties and high proton conductivity for high-temperature proton exchange membrane |
| 초록 |
Polybenzimidazole (PBI) composite membranes based on modified graphene oxide (ImGO) containing benzimidazole group as a filler material were prepared for the application in high temperature proton exchange membrane fuel cell (HT-PEMFC). Since ImGO has benzimidazole group, same functional unit with PBI matrix, the compatibility of ImGO with PBI is enhanced. Thereby, PBI composite membrane having ImGO exhibited improved physicochemical properties, such as mechanical properties, oxidative and thermal stability. Especially, high proton conductivity compared with pristine PBI and PBI composite membrane having GO is observed. For example, proton conductivity of composite membrane having 0.5 wt.% of ImGO, at 150 oC under anhydrous condition, was 77.52 mS cm-1 which is 46.9% larger than that of the pristine PBI membrane. |
| 저자 |
김정환1, 김기현2, 한주성1, 이현희1, 김혜진1, 이종찬1
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| 소속 |
1서울대, 2경상대 |
| 키워드 |
Polybenzimidazole; graphene oxide; composite; proton exchange membrane
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| E-Mail |
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