abstract |
A perovskite-type oxide catalyst for water-splitting reactions is provided. The catalyst, Ca 2-y Sr y Fe 1-x Co 1-x Mn 2x O 6-δ where y=0.10-1.90 and x=0.05-0.95, has catalytic activity for both hydrogen- and oxygen-evolution reactions. An exemplary catalyst is CaSrFe 0.75 Co 0.75 Mn 0.5 O 6-δ . |