Visualization of oxide ionic diffusion at SOFC cathode/electrolyte interfaces by isotope labeling techniques

Teruhisa Horita, Mina Nishi, Taro Shimonosono, Haruo Kishimoto, Katsuhiko Yamaji, Manuel E. Brito, Harumi Yokokawa

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The depth profiles of secondary ion mass spectrometry (SIMS) have been applied to analyze the distribution of 18O and metal oxide ions precisely at La0.6Sr0.4Co0.2Fe 0.8O3 - d/Gd0.1Ce0.9O 2 - x (GDC)/Y0.15Zr0.85O2 - y (YSZ) interfaces. 18O concentration peak was identified only under cathodic polarization with a constant current density of 0.071 A cm- 2 at 973 K under 18O2 atmosphere. The 18O peak position was corresponded to the Sr condensed zone where SrZrO3 was formed at the GDC/YSZ interfaces. The SrZrO3 formation and the 18O concentration profile pile-up are correlated to each other.

Original languageEnglish
Pages (from-to)398-402
Number of pages5
JournalSolid State Ionics
Volume262
DOIs
Publication statusPublished - 2014 Sep 1
Externally publishedYes

Fingerprint

ionic diffusion
Cathodic polarization
Secondary ion mass spectrometry
yttria-stabilized zirconia
Solid oxide fuel cells (SOFC)
Isotopes
Oxides
Labeling
Electrolytes
marking
Piles
Cathodes
Current density
Visualization
isotopes
cathodes
Metals
electrolytes
Ions
oxides

Keywords

  • Cathode
  • Depth profiles
  • Isotope labeling
  • SIMS
  • SOFC

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Chemistry(all)

Cite this

Horita, T., Nishi, M., Shimonosono, T., Kishimoto, H., Yamaji, K., Brito, M. E., & Yokokawa, H. (2014). Visualization of oxide ionic diffusion at SOFC cathode/electrolyte interfaces by isotope labeling techniques. Solid State Ionics, 262, 398-402. https://doi.org/10.1016/j.ssi.2013.12.039

Visualization of oxide ionic diffusion at SOFC cathode/electrolyte interfaces by isotope labeling techniques. / Horita, Teruhisa; Nishi, Mina; Shimonosono, Taro; Kishimoto, Haruo; Yamaji, Katsuhiko; Brito, Manuel E.; Yokokawa, Harumi.

In: Solid State Ionics, Vol. 262, 01.09.2014, p. 398-402.

Research output: Contribution to journalArticle

Horita, T, Nishi, M, Shimonosono, T, Kishimoto, H, Yamaji, K, Brito, ME & Yokokawa, H 2014, 'Visualization of oxide ionic diffusion at SOFC cathode/electrolyte interfaces by isotope labeling techniques', Solid State Ionics, vol. 262, pp. 398-402. https://doi.org/10.1016/j.ssi.2013.12.039
Horita, Teruhisa ; Nishi, Mina ; Shimonosono, Taro ; Kishimoto, Haruo ; Yamaji, Katsuhiko ; Brito, Manuel E. ; Yokokawa, Harumi. / Visualization of oxide ionic diffusion at SOFC cathode/electrolyte interfaces by isotope labeling techniques. In: Solid State Ionics. 2014 ; Vol. 262. pp. 398-402.
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