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

Abstract

Iron doping in LaNi_1−xFe_xO₃ (x = 0, 0.1, 0.2) synthesized by a sol–gel method increases the valence state of the surface Ni and, thereby, the catalytic activity for both the ORR and OER in 0.1 M KOH electrolyte. The Fe-doped LaNiO₃ offers a low-cost electrocatalyst for an air cathode in metal–air batteries.