Probing novel triple phase conducting composite cathode for high performance protonic ceramic fuel cells
By Li, Geng; Zhang, Yanxiang; Ling, Yihan; He, Beibei; Xu, Jianmei; Zhao, Ling
Published in International Journal of Hydrogen Energy
2016
Abstract
Abstract A key obstacle to practical operation of protonic ceramic fuel cells (PCFCs) is the development of high efficient cathode materials. In this study, we report the identification of Gd0.1Ce0.9O2-? (GDC) infiltrated PrBaCo2O5+? (PBC) - BaZr0.1Ce0.7Y0.2O3-? (BZCY) materials as a novel triple phase (e?/H+/O2?) conducting composite cathode of PCFCs. This triple phase conducting composite cathode is confirmed to promise the extended electrochemical active sites and the accelerated oxygen reduction process. The polarization resistance (such as 0.051 ? cm2 at 700