Stable SrCo0.7Fe0.2Zr0.1O3-δ cathode material for proton conducting solid oxide fuel cell reactors

SrCo0.7Fe0.2Zr0.1O3-δ (SCFZ) perovskite is prepared using a combustion method. SCFZ exhibits high stability while SrCo0.8Fe0.2O3-δ without Zr doping decomposes in CO2 and H2O- containing atmosphere at elevated temperature. SCFZ also displays excellent chemical compatibility with BaCe0.7Y0.2Zr0.1O3-δ (BCYZ) proton conductor. A ceramic membrane fuel cell reactor is assembled with SCFZ + BCYZ composite cathode, porous Pt anode and BCYZ electrolyte. High selective ethylene and electrical energy are co-generated from ethane in the proton conducting solid oxide fuel cell reactor.