| 초록 |
Sr0.92Y0.08Ti1-xVxO3-δ(SYTV) with perovskite structure was investigated as an alternative anode to utilize hydrocarbon fuels in solid oxide fuel cells. To improve electrochemical performance of Sr0.92Y0.08TiO3-δ(SYT), titanium in B-site of the perovskite was substituted to vanadium. Due to the aliovalent substitution in SYT, oxygen vacancy was introduced leading to increasing ionic conductivity. As increasing substitution amount of vanadium, the oxygen vacancy increased. The SYTV was compatible with YSZ electrolyte at sythesizing and operating condition. As result of this substitution, the cell performance was 21.77 mW/cm2 with 1% vanadium substituted in H2 at 800℃ and 94.54 mW/cm2 with 12% vanadium substituted in H2 at 800℃. |
