| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1280992 | International Journal of Hydrogen Energy | 2014 | 7 Pages |
•Instead of nickel, the LSV was used in the composite anode for PCFC.•The composite anode for PCFC having the LSV, CeO2 and Pd can be fabricated at 973 K.•The protonic ceramics enabled better electrode performance than the YSZ.•The LSV-anode performed better than the LSF-cathode at low temperatures.
The composite electrodes for protonic ceramic fuel cells (PCFC) were fabricated by infiltration of (La0.8Sr0.2)FeO3−δ (LSF) cathode and (La0.7Sr0.3)V0.90O3−δ (LSV) anode into a porous protonic ceramic, Ba(Ce0.51Zr0.30Y0.15Zn0.04)O3−δ (BCZY-Zn), respectively. Further, Pd-ceria catalysts were added into the composite anode. In the same method, the oxygen ion conducting fuel cells with the yttria-stabilized zirconia as an electrolyte (YSZ cell) were also fabricated. At 973 K, the non-ohmic area specific resistance (ASR) of PCFC (0.09 Ω cm2) was much smaller than that of the YSZ cell (0.28 Ω cm2) although the protonic conductivity of BCZY-Zn was slightly smaller than the oxygen ion conductivity of YSZ. According to the analysis of the symmetric cells with BCZY-Zn as an electrolyte, the LSV-composite anode showed better performance than the LSF-composite cathode at low temperatures.
