Bifunctional electrocatalysts Pr 0.5 Sr 0.5 Cr 0.1 Fe 0.9− x Ni x O 3− δ ( x = 0.1, 0.2) for the HOR and ORR of a symmetric solid oxide fuel cell

Pr 0.5 Sr 0.5 Cr 0.1 Fe 0.9− x Ni x O 3− δ (PSCFN x , x = 0.1, 0.2) catalysts are prepared and utilized as electrodes in symmetric solid oxide fuel cells (SOFCs) for the hydrogen oxidation reaction (HOR) and oxygen reduction reaction (ORR).