| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7733984 | Journal of Power Sources | 2015 | 8 Pages |
Abstract
Defect fluorite, Bi-doped Pr6O11, was studied as a cathode and it was found that Bi doped Pr6O11 exhibits high surface activity for the cathode reaction, and an all-fluorite concept SOFCs is successfully demonstrated by using Ce0.6Mn0.3Fe0.1O2 for anode. Diffusivity and surface activity in Bi doped Pr6O11 was further studied with 18O2-16O2 gas phase exchange and a surface activity was competitively high with that of La0.6Sr0.4Fe0.8Co0.2O3 (LSFC), and this high surface activity is a result of the large oxygen vacancy in Pr6O11. The power generation property of the cell was also examined by using C3H8 and the power density of 0.4Â W/cm2 was exhibited when dry C3H8 was directly used for a fuel because of decreased IR loss.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Tatsumi Ishihara, Jing Xie, Tae Ho Shin, Young-Wan Ju, Shintaro Ida, John A. Kilner,