| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 봄 (04/23 ~ 04/24, 광주 김대중컨벤션센터) |
| 권호 |
15권 1호, p.926 |
| 발표분야 |
재료 |
| 제목 |
Characteristicsof Sm-doped ceria powders with nanometer sizefor SOFC electrolyte |
| 초록 |
Ceria has been investigated as an oxide-ion electrolyte competitive with stabilized zirconia for use in solid-oxide fuel cell(SOFC). Advantage of using ceria-based electrolytes is well known as higher ionic conductivity.In this study, nano-sized samaria-doped ceria(SDC) powders were prepared by spray pyrolysis from the spray solution with organic additive. The precursor powders with hollow structure and thin wall structure turned to the nano-sized SDC powders after post-treatment at high temperatures. The doping concentration of samarium was fixed at 20 mol% of cerium component. The mean size ofthe SDC powders were controlled by changingthe post-treatment temperatures. The effect of mean size of SDC powders on the morphological and electrical characteristics of SDC pellets were investigated. |
| 저자 |
장희찬1, 정대수2, 강윤찬1
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| 소속 |
1건국대, 2한국과학기술원 생명화학공학과 |
| 키워드 |
nano-sized Sm-doped ceria; SOFC electrolyte; spray pyrolysis
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| E-Mail |
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| 원문파일 |
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