Iron doping in LaNi 1−x Fe x O ₃ ( 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 LaNiO ₃ offers a low-cost electrocatalyst for an air cathode in metal–air batteries.
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Zhang et al. (2015) studied this question.
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