BaCo[sub 0.7]Fe[sub 0.2]Nb[sub 0.1]O[sub 3−δ] Perovskite Oxide as Cathode Material for Intermediate-Temperature Solid Oxide Fuel Cells

The cathode material (BCFN) was prepared by the solid-state reaction for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The samples had a cubic perovskite structure. The electrical conductivity was relatively low with a maximum value of at about . The area specific resistance value for the BCFN cathode was as low as at . Using BCFN as the cathode, the electrolyte-supported single cell exhibited peak power intensities of at . Preliminary results demonstrated that BCFN is a very promising cathode material for application in IT-SOFCs.