New cathode compositions based on La0.84Sr0.16Mn1−xMxO3, where M = Al, Ga for solid oxide fuel cell

▶ A new series of cathode composition with better compatibility. ▶ The conductivity of La0.84Sr0.16Mn0.9Al0.1O3 is 122 S cm−1 at 950 °C. ▶ The thermal expansion coefficient of La0.84Sr0.16Mn0.9Al0.1O3 is 11.04 × 10−6 K. ▶ Al-doped La0.84Sr0.16MnO3 composition is the most suited alternate cathode material solid oxide fuel cell.