Author/Authors :
Hanping Ding، نويسنده , , Bin Lin، نويسنده , , Yinzhu Jiang، نويسنده , , Songlin Wang، نويسنده , , Daru Fang، نويسنده , , Yingchao Dong، نويسنده , , Shanwen Tao، نويسنده , , Ranran Peng، نويسنده , , Xingqiu Liu، نويسنده , , Guangyao Meng، نويسنده ,
Abstract :
The SrCo0.9Sb0.1O3−δ (SCS) composite oxide with cubic perovskite structure was synthesized by a modified Pechini method and examined as a novel cathode for protonic ceramic membrane fuel cells (PCMFCs). At 700 °C and under open-circuit condition, symmetrical SCS cathode on BaZr0.1Ce0.7Y0.2O3−δ (BZCY7) electrolyte showed low polarization resistances (Rp) of 0.22 Ωcm2 in air. A laboratory-sized tri-layer cell of NiO–BZCY7/BZCY7/SCS was operated from 500 to 700 °C with humidified hydrogen (~3% H2O) as fuel and the static air as oxidant. A high open-circuit potential of 1.004 V, a maximum power density of 259 mW cm−2, and a low polarization resistance of the electrodes of 0.14 Ωcm2 was achieved at 700 °C.
