A Novel Composite Cathode for Low‐Temperature SOFCs Based on Oxide Proton Conductors

Abstract

A composite cathode, consisting of Ba(Zr0.1Ce0.7Y0.2)O3−δ (BZCY) and Sm0.5Sr0.5CoO3−δ (SSC), exhibits remarkable catalytic activity towards oxygen reduction, dramatically enhancing the performance of low-temperature SOFCs based on an oxide proton conductor, as shown in the figure. The peak power densities represent the best performances ever reported for this type of SOFCs—a promising low-cost SOFC system.