Effect of low Cobalt doping on morphology and properties of calcium ferrite and its application as cathode in Solid Oxide Fuel Cell

Electrical characterization of Ca2Fe2−xCoxO5 (x = 0, 0.01, 0.03) for cathodic application in Solid Oxide Fuel Cells - Influence of Morphology. Investigation of Ca2Fe2−xCoxO5/Ce0.9Sm0.1O2 bilayers (x = 0, 0.01, 0.03) for application in Solid Oxide Fuel Cells. Fig (a) XRD pattern for Ca2Fe2−xCoxO5 (x = 0, 0.01, 0.03) (b) Bilayer (half cell) impedance using Ca2Fe2−xCoxO5 (x = 0, 0.01, 0.03) as cathode and Ce0.9Sm0.1O2 (SDC) as electrolyte recorded at 800 °C (c) Schematic of bilayer (Electrolyte/Cathode) (d) SEM image of bilayer (electrolyte/Cathode) Ca2Fe0.99Co0.01O5/Ce0.9Sm0.1O2 after impedance studies.344