Bi doped Pr6O11 as fluorite oxide cathode for all-fluorite solid oxide fuel cells

Tatsumi Ishihara, Jing Xie, Tae Ho Shin, Young Wan Ju, Shintaro Ida, John A. Kilner

Research output: Contribution to journalArticle

5 Citations (Scopus)

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 0.4 W/cm2 was exhibited when dry C3H8 was directly used for a fuel because of decreased IR loss.

Original languageEnglish
Pages (from-to)167-174
Number of pages8
JournalJournal of Power Sources
Volume275
DOIs
Publication statusPublished - Feb 1 2015

Fingerprint

Fluorspar
fluorite
solid oxide fuel cells
Solid oxide fuel cells (SOFC)
Oxides
Cathodes
cathodes
oxides
Oxygen vacancies
diffusivity
Power generation
radiant flux density
Anodes
anodes
Gases
vapor phases
Defects
defects
oxygen
cells

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Bi doped Pr6O11 as fluorite oxide cathode for all-fluorite solid oxide fuel cells. / Ishihara, Tatsumi; Xie, Jing; Shin, Tae Ho; Ju, Young Wan; Ida, Shintaro; Kilner, John A.

In: Journal of Power Sources, Vol. 275, 01.02.2015, p. 167-174.

Research output: Contribution to journalArticle

Ishihara, Tatsumi ; Xie, Jing ; Shin, Tae Ho ; Ju, Young Wan ; Ida, Shintaro ; Kilner, John A. / Bi doped Pr6O11 as fluorite oxide cathode for all-fluorite solid oxide fuel cells. In: Journal of Power Sources. 2015 ; Vol. 275. pp. 167-174.
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AU - Ida, Shintaro

AU - Kilner, John A.

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AB - 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 0.4 W/cm2 was exhibited when dry C3H8 was directly used for a fuel because of decreased IR loss.

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