| 학회 |
한국화학공학회 |
| 학술대회 |
2004년 가을 (10/29 ~ 10/30, 호서대학교(아산캠퍼스)) |
| 권호 |
10권 2호, p.1900 |
| 발표분야 |
에너지/환경 |
| 제목 |
Fabrication of Anode-Supported SOFC by Sol-Gel Coating Method |
| 초록 |
Recently, many attempts have been made to reduce the operation temperatures of solid oxide fuel cells (SOFCs) below 7000C to enhance their thermal- and mechanical-shock resistance. However, since the lowering of temperature causes the increase of electrolyte ohmic loss and electrode overpotential, the fabrication of thin film electrolytes and the extension of the triple-phase boundary (TPB) to electrodes as well as cell designs will be key issues. Here we have applied the sol-gel hot-spin coating process as the cheapest and simplest method fabricating thin electrolytes onto porous substrates. To improve the performance of the LSM cathode, the complete cell was modified by sol-gel dip-coating process reported by Yoon et al.. The cell thus fabricated was set up in test cell station with 200 ml.min-1 humidified H2 (30%) and N2 as the fuel and 200 ml.min-1 humidified air as the oxidant at 6000C. The single cell consisting of 20μm thick electrolyte, Ni-Al porous anode substrate, and LSM cathode exhibited the open circuit voltage of 1.14V and maximum power density of 0.34 W.cm-2 at 600 mA.cm-2 at 6000C with humidified hydrogen as the fuel and air as the oxidant. |
| 저자 |
수안 풍, 남석우, 윤성필, 한종희, 임태훈, 홍성안
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| 소속 |
한국과학기술(연) |
| 키워드 |
anode-supported SOFC; mixed-gas fuel cell
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| E-Mail |
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| 원문파일 |
초록 보기 |
