| 학회 |
한국재료학회 |
| 학술대회 |
2009년 봄 (05/21 ~ 05/22, 무주리조트) |
| 권호 |
15권 1호 |
| 발표분야 |
에너지환경재료 |
| 제목 |
Performance and Characterization of a GDC-Based Unit Cell for Intermediate-Temperature Solid Oxide Fuel Cells |
| 초록 |
A high demand on solid oxide fuel cells requires the development of intermediate-temperature solid oxide fuel cells (IT-SOFCs). The IT-SOFCs is constructed based on ceria-based electrolytes, especially Gd2O3-doped CeO2 (GDC). The current work places special emphases on the unit cell performance in GDC-based solid oxide fuel cells. The cathode composite was a mixture of GDC(Ce0.9Gd0.1O1.95) and LSCF (La0.6Sr0.4Co0.2Fe0.8O3) and the anode a composite of GDC and Ni. In our electrolyte-supported SOFC system, both electrodes were fabricated through screen-printing and. the printed electrolyte was attached hermetically to interconnect. The output characteristics are measured along with electrochemical impedance spectroscopy from 700℃ to 550℃. The electrical performance of the current IT-SOFC unit cell was evaluated in terms of open circuit potentials, current-voltage characteristics, current-power features, impedance spectroscopy etc. The unit cell performance is discussed with regard to the triple phase boundary concepts through the simultaneous analyses assisted by electrical and microstructural techniques. |
| 저자 |
이종원1, 김용훈1, 형은희1, 배승묵1, 이종호2, 황진하1
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| 소속 |
1홍익대, 2한국과학기술(연) |
| 키워드 |
GDC; IT-SOFCs; Unit Cell Test
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| E-Mail |
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