Characterization of Ba1.0Sr1.0FeO4+δ cathode on La0.9Sr0.1Ga0.8Mg0.2O3−δ electrolyte for intermediate temperature solid oxide fuel cells

► Ba1.0Sr1.0FeO4+δ as a kind of cathode materials is investigated firstly on La0.9Sr0.1Ga0.8Mg0.2O3−δ (LSGM) electrolyte. ► The Rp of Ba1.0Sr1.0FeO4+δ cathode materials on LSGM electrolyte is 1.42 Ω cm2 at 800 °C. ► The BSFO has low electrical conducting activate, 0.204 eV.