| 학회 |
한국화학공학회 |
| 학술대회 |
2020년 가을 (10/14 ~ 10/16, e-컨퍼런스) |
| 권호 |
26권 1호, p.691 |
| 발표분야 |
재료 |
| 제목 |
Characteristics of Sr0.92Y0.08Ti1-xVxO3-δ anode for using H2S fuel in solid oxide fuel cells |
| 초록 |
SYTV (Sr0.92Y0.08Ti1-xVxO3-δ) with perovskite structure was investigated as an alternative anode to utilize hydrocarbon fuels in SOFCs (Solid Oxide Fuel Cells). Ti at the B-site of the perovskite was partially substituted to V varying with 1~7 mol.%. The SYTV systhesized by Pechini method was chemically compatible with YSZ electrolyte with no interlayer by0products formation. As increasing the V dopant in SYT, the more oxygen vacancies introduced in the anode leading to improving the ionic conductivity. In addition, the sulfur tolerant property of the anode was increased by V doping in the SYT (Sr0.92Y0.08TiO3-δ). The cell performances in pure H2 at 850℃ were 19.30 mW/cm2 and 34.89 mW/cm2 in 1 mol.% and 7 mol.% of V doping in the SYT anode, respectively. In H2 fuel containing H2S of 1000 ppm, the maximum power densities of the cells showed 23.34 mW/cm2 and 73.11 mW/cm2 in 1 mol.% and 7 mol.% of V doping in the SYT anode, respectively. |
| 저자 |
김준호, 장근영, 모수인, 박광선, 김지현, 윤정우
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