| 학회 | 한국화학공학회 |
| 학술대회 | 2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 | 13권 2호, p.1949 |
| 발표분야 | 에너지/환경 |
| 제목 | Preparation and Characterization of Sulfonated Amorphous Carbon with Activated Carbon/Nafion Composite Membranes |
| 초록 | Nafion membranes are most commonly used as proton exchange membranes because they are excellent proton conductors and good electronic insulators, but they are expensive and require water for a high proton conductivity. It was reported that sulfonated amorphous carbon is very useful as a proton exchange membrane because it excels in proton conductivity and thermal stability and can be produced at low cost. Some groups proposed an application in PEMFC as proton exchange membrane. Sulfonated amorphous carbon is prepared by heating carbon source in sulfuric acid and consists of small polycyclic aromatic carbon sheets with attached sulfonic acid group. In case of this process, we can obtain sulfonated carbon with a high sulfonate density. In our study, we have prepared sulfonated amorphous carbon with activated carbon as water retainer and characterized our material by FT-IR, 13C MAS NMR, and SEM. We expect these materials have higher proton conductivity then commercial membranes under low and non-humidified conditions. |
| 저자 | 최영근, V. Vijaykumar, 이재성 |
| 소속 | 포항공과대 |
| 키워드 | fuel cell; Sulfonated carbon; membrane |
| 원문파일 | 초록 보기 |
