SrCo0.7Fe0.2Zr0.1O3-delta (SCFZ) perovskite is prepared using a combustion method. SCFZ exhibits high stability while SrCo0.8Fe0.2O3-delta without Zr doping decomposes in CO2- and H2O-containing atmosphere at elevated temperature. SCFZ also displays excellent chemical compatibility with BaCe0.7Y0.2Zr0.1O3-delta (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. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.