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

14 Citations (Scopus)

Abstract

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
Pages171-180
Number of pages10
Edition1
DOIs
Publication statusPublished - 2012 Nov 19
EventIonic and Mixed Conducting Ceramics 8 - 221st ECS Meeting - Seattle, WA, United States
Duration: 2012 May 62012 May 10

Publication series

NameECS Transactions
Number1
Volume45
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherIonic and Mixed Conducting Ceramics 8 - 221st ECS Meeting
CountryUnited States
CitySeattle, WA
Period12/5/612/5/10

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Nishi, M., Horita, T., Yamaji, K., Yokokawa, H., Shimonosono, T., Kishimoto, H., Brito, M. E., Cho, D., & Wang, F. (2012). Oxide ion conductivity of LaNi0.6Fe0.4O3. In Ionic and Mixed Conducting Ceramics 8 (1 ed., pp. 171-180). (ECS Transactions; Vol. 45, No. 1). https://doi.org/10.1149/1.3701306