Abstract
Solid oxide fuel cells (SOFCs) with Sr 0.8 La 0.2 TiO 3 anode-side supports, along with Ni-Y 2 O 4 -stabilized ZrO 2 (YSZ) anode, YSZ electrolyte, and LSM-YSZ (LSM = La 0.8 Sr 0.2 MnO 3 ) cathode, were prepared. Button cells yielded a power density up to 1.0 W/cm 2 in humidified H 2 and air at 800°C. The cells showed much-improved stability against coking in methane compared with conventional Ni-YSZ anode-supported SOFCs. A detailed model was used to fit the SOFC electrical results and to show that the good stability in methane was a result of the high 0-to-C ratio in the Ni-YSZ anode due to the Sr 0.8 La 0.2 TiO 3 support.
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