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

摘要

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_2O_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 0.835W·cm~(-2) at 750, 800 and 850 °C, respectively, with H_2 as fuel and air as the oxidant.