| 학회 | 한국화학공학회 |
| 학술대회 | 2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 | 18권 2호, p.2102 |
| 발표분야 | 에너지 |
| 제목 | The effect of functionally graded carbon fuels in tubular DCFCs |
| 초록 | Since the direct electrochemical oxidation of solid carbon on the Ni-YSZ anode (C + 2O2- → CO2 + 4e-) is thought to be intrinsically sluggish and thus the main bottleneck in the development of DCFCs, various attempts have been devoted to not only promoting more effective contact between solid(fuels)-solid(catalysts) interface but also enhancing the catalytic activity of anode catalysts. For this purpose, several types of additives are mixed with carbon fuels, and the fuels are functionally graded inside an anode-supported tubular solid oxide fuel cell for not only maximizing internal gasification effect but also minimizing detrimental effect due to carbon deposit on Ni anode catalyst. Impregnated Ni catalysts in primary fuels are expected to promote internal gasification by increasing the chemical oxidation of carbon to CO, which can be readily oxidized to CO2 electrochemically on the Ni-YSZ anode. Furthermore, Sn or Sb in secondary fuels is expected to play an important role of retarding carbon deposit on Ni catalysts together with as an electrochemical mediator. In this study, we report on the effect of functionally graded carbon fuels by taking advantage of tubular SOFC structure and typical characteristics of several additives. |
| 저자 | 박재량, 이찬기, 홍현선, 엄성현 |
| 소속 | 고등기술(연) |
| 키워드 | DCFC(직접탄소연료전지); tubular type SOFC(관형 고체산화물연료전지); internal gasification(내부 가스화); functionally graded fuels (기능성 연료) |
| 원문파일 | 초록 보기 |
