LSM‐YSZ Cathode with Infiltrated Cobalt Oxide and Cerium Oxide Nanoparticles

To improve the La0.8Sr0.2MnO3 (LSM) –8 mol-%Y2O3-ZrO2 (YSZ) cathode performance of intermediate temperature solid oxide fuel cells (SOFC), Co3O4 and CeO2 nanoparticles were infiltrated into the cathode. Co-infiltration of these oxide particles drastically enhanced the cell performance between 800 and 600 °C. The infiltrated CeO2 suppressed the aggregation of nanoparticle Co3O4, resulting in the high catalytic activity of the nanoparticle Co3O4 for oxygen reduction at intermediate temperatures. The anode-supported SOFC with Co3O4 and CeO2 co-infiltrated LSM-YSZ cathode at 700 °C showed the high specific power density of 0.58 W cm–2 at 0.7 V.