Active LaNi1−xFexO3 bifunctional catalysts for air cathodes in alkaline media

Abstract

LaNi_1−xFe_xO₃ (x = 0, 0.1, 0.2, 0.6) were synthesized by the sol–gel method. The Fe-substitution for Ni suppresses the formation of Ni^II on the perovskite surface and creates a stronger surface Ni–O bond. This study exhibits the possibility to adjust the bi-functional activity of LaNiO₃ through a simple doping process.