Electrochemical investigations of cobalt-free perovskite cathode material for intermediate temperature solid oxide fuel cell

267LSZF perovskite oxides demonstrate excellent electrochemical activity by achieving the high electrical conductivity and ultra-low area specific resistance at 550 °C. Furthermore, single fuel cell with LSZF cathode exhibits the outstanding electrochemical performance by achieving the high power density of 409 mW cm−2 with commercial available natural gas at 550 °C.