Infiltrated porous YSZ as a cathode active layer for cathode-supported solid oxide fuel cells

Abstract A novel active cathode structure of La 0.6 Sr 0.4 Fe 0.9 Sc 0.1 O 3 − δ (LSFSc) infiltrated porous 8 mol% Y 2 O 3 -stabilized ZrO 2 (YSZ) was fabricated by tape casting, co-sintering and infiltration techniques. The infiltrated porous-YSZ layer worked as a cathode active layer (CAL) between a YSZ electrolyte layer and (La 0.8 Sr 0.2 ) 0.95 MnO 3 (LSM95) cathode substrate. The obtained fuel cells with Ni/SDC anode showed the maximum power densities of 0.574, 0.733 and 0.835 W·cm − 2 at 750, 800 and 850 °C, respectively, with H 2 as fuel and air as the oxidant.