Patent ID: 7976686

Claim:
An electrolyzer cell comprising: a cathode to reduce an oxygen-containing molecule to produce an oxygen ion and a fuel molecule, wherein the cathode comprises an electron conducting phase comprising nickel oxide intermixed with magnesium oxide; an electrolyte coupled to the cathode to transport the oxygen ion; an anode coupled to the electrolyte to receive the oxygen ion to produce oxygen gas therewith, the anode comprising an electron-conducting phase comprising a perovskite having a chemical formula of substantially (Pr (1-x) La x ) (z-y) A′ y BO (3-∂) , wherein 0≦x≦0.5, 0≦y≦0.5, and 0.8≦z≦1.1, and wherein A′ comprises at least one alkaline earth metal and B comprises at least one transition metal.