| 학회 |
한국재료학회 |
| 학술대회 |
2012년 가을 (11/07 ~ 11/09, 라카이샌드파인 리조트) |
| 권호 |
18권 2호 |
| 발표분야 |
C. 에너지/환경 재료(Energy and Environmental Materials) |
| 제목 |
Preparation and Property Evaluation of high purity Co-doped (La1-x,Srx) (Ga1-y,Mgy) O3-δ electrolyte |
| 초록 |
One promising electrolyte material is (La, Sr) (Ga, Mg) O3−δ(LSGM) based perovskites, which have at least an order of magnitude higher ionic conductivity than conventional yittria stabilized zirconia. It was found that the oxide ion conductivity increased by doping Co into Ga site. However, partial electronic conduction monotonically increases with increasing Co amount and hole conduction was detected at high oxygen partial pressures. Ionic conductivity is significantly increased by small amount of Co doping. Secondary phase is deleterious effects on the ionic conductivity of the materials. Conductivity of LSGMC materials were affected by secondary phase segregation and depended on both composition and synthetic route.
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| 저자 |
옥경민, 김동현, 박홍채, 윤석영
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| 소속 |
부산대 |
| 키워드 |
SOFC; LSGMC
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| E-Mail |
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