Oxide ion conductivity of LaNi0.6Fe0.4O3

M. Nishi, T. Horita, K. Yamaji, H. Yokokawa, T. Shimonosono, H. Kishimoto, M. E. Brito, D. Cho, F. Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

19 Citations (Scopus)


The oxide ion conductivity of LaNi0.6Fe0.4O 3 (LNF) was studied by oxygen isotope exchange measurement and SIMS at 673 ∼ 1073K in p(O2) = 0.4 ∼ 20 kPa. Oxygen tracer diffusion coefficients (D*) and the surface exchange rates (k) obtained were 4.3 × 10-9 cm2/s and 8.6 × 10 -6 cm/s respectively at 1073 K in p(O2) = 20 kPa. The activation energy (Ea) for D* was obtained as 152 kJ/mol. D* and Ea for D* of LNF are very close to those of La0.6Sr0.4Co0.8Fe0.2O3 (LSCF). Additionally, oxygen vacancy content in LNF lattice is estimated which are much less than that of LSCF. Possible mechanism of oxide ion conductivity/diffusivity in LNF is discussed according to the present results.

Original languageEnglish
Title of host publicationIonic and Mixed Conducting Ceramics 8
PublisherElectrochemical Society Inc.
Number of pages10
ISBN (Electronic)9781607683155
ISBN (Print)9781566779531
Publication statusPublished - 2012
Externally publishedYes
EventIonic and Mixed Conducting Ceramics 8 - 221st ECS Meeting - Seattle, WA, United States
Duration: 2012 May 62012 May 10

Publication series

NameECS Transactions
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737


OtherIonic and Mixed Conducting Ceramics 8 - 221st ECS Meeting
Country/TerritoryUnited States
CitySeattle, WA

ASJC Scopus subject areas

  • General Engineering


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