Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9761777 | Solid State Ionics | 2005 | 6 Pages |
Abstract
The cathodic polarization of strontium-doped lanthanum ferrite, La1âxSrxFeO3âα, was studied in the hydrogen-oxygen fuel cell using proton-conducting SrCe0.95Yb0.05O3âα as an electrolyte. The overpotential of La0.7Sr0.3FeO3âα cathode was smaller than those of other perovskite-type oxides such as La0.7Sr0.3MnO3âα and La0.7Sr0.3CoO3âα, and platinum at 773-973 K. The best cathodic performance was obtained for La0.7Sr0.3FeO3âα heat-treated at 1173 K. The cathode resistance of La0.7Sr0.3FeO3âα was independent of pO2 while that of sputtered platinum was proportional to pO2â1/4.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Hiroyuki Yamaura, Tetsuya Ikuta, Hidenori Yahiro, Genji Okada,