A detailed analysis of thermal and chemical compatibility of cathode materials suitable for BaCe0.8Y0.2O3−δ and BaZr0.8Y0.2O3−δ proton electrolytes for solid oxide fuel cell application

On the base of experimental data, LaNi0.6Fe0.4O3−δ, La2NiO4+δ and Y0.8Ca0.2BaCo4O7+δ electrode materials have been selected for electrical and electrochemical characterization. It is found that bi-layer electrode with Y0.8Ca0.2BaCo4O7+δ functional layer and LaNi0.6Fe0.4O3 collector exhibits both the lowest polarization and serial resistances in contact with BaCe0.8Y0.2O3−δ electrolyte.