| 학회 | 한국화학공학회 |
| 학술대회 | 2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 | 18권 2호, p.1970 |
| 발표분야 | 에너지 |
| 제목 | 중온 고체산화물 연료전지를 위한 Bi2O3 doped SDC(Ce0.8Sm0.2O1.9) 전해질의 특성에 관한 연구 |
| 초록 | Due to a good ionic conductivity, SDC(Samarium-doped ceria) can be used as an electrolyte of solid oxide fuel cells (SOFCs). However, to obtain the electrolyte with fully densification, SDC is required for high sintering temperature(1600℃). In this study, (25wt% and 30wt%) Bi2O3-doped SDCs are examined to lower densification temperature of SDC. Bi2O3-doped SDCs were sintered at 1000℃ and their porosities were measured by using ASTM method. (25wt% and 30wt%) Bi2O3-doped SDCs show low porosity of 3% and 0.9% respectively, which is sufficient to use an electrolyte for SOFCs. The conductivity of Bi2O3-doped SDC pellet was also examined by 4-point probe method(At 800℃, (25wt% and 30wt%)Bi2O3-doped SDC's conductivities were 0.3959 S/cm and 0.2535 S/cm, respectively). Unlike 20wt% of the Bi2O3-doped SDC, (25wt% and 30wt%) Bi2O3-doped SDCs show single cubic phase and higher conductivity. |
| 저자 | 오창훈, 송신애, 김희수, 남석우, 윤성필, 한종희 |
| 소속 | 한국과학기술(연) |
| 키워드 | Bi2O3; SDC; fuel cell; Electrolyte |
| 원문파일 | 초록 보기 |
