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

doi:10.1149/1.3701306

Oxide ion conductivity of LaNi_0.6Fe_0.4O₃

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 proceeding › Conference contribution

17 Citations (Scopus)

Abstract

The oxide ion conductivity of LaNi_0.6Fe_0.4O 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 (E_a) for D* was obtained as 152 kJ/mol. D* and E_a for D* of LNF are very close to those of La_0.6Sr_0.4Co_0.8Fe_0.2O₃ (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 language	English
Title of host publication	Ionic and Mixed Conducting Ceramics 8
Publisher	Electrochemical Society Inc.
Pages	171-180
Number of pages	10
Edition	1
ISBN (Electronic)	9781607683155
ISBN (Print)	9781566779531
DOIs	https://doi.org/10.1149/1.3701306
Publication status	Published - 2012
Externally published	Yes
Event	Ionic and Mixed Conducting Ceramics 8 - 221st ECS Meeting - Seattle, WA, United States Duration: 2012 May 6 → 2012 May 10

Publication series

Name	ECS Transactions
Number	1
Volume	45
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Other

Other	Ionic and Mixed Conducting Ceramics 8 - 221st ECS Meeting
Country/Territory	United States
City	Seattle, WA
Period	12/5/6 → 12/5/10

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.1149/1.3701306

Cite this

Nishi, M, Horita, T, Yamaji, K, Yokokawa, H, Shimonosono, T, Kishimoto, H, Brito, ME, Cho, D & Wang, F 2012, Oxide ion conductivity of LaNi_0.6Fe_0.4O₃. in Ionic and Mixed Conducting Ceramics 8. 1 edn, ECS Transactions, no. 1, vol. 45, Electrochemical Society Inc., pp. 171-180, Ionic and Mixed Conducting Ceramics 8 - 221st ECS Meeting, Seattle, WA, United States, 12/5/6. https://doi.org/10.1149/1.3701306

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title = "Oxide ion conductivity of LaNi0.6Fe0.4O3",

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.",

author = "M. Nishi and T. Horita and K. Yamaji and H. Yokokawa and T. Shimonosono and H. Kishimoto and Brito, {M. E.} and D. Cho and F. Wang",

year = "2012",

doi = "10.1149/1.3701306",

language = "English",

isbn = "9781566779531",

series = "ECS Transactions",

publisher = "Electrochemical Society Inc.",

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pages = "171--180",

booktitle = "Ionic and Mixed Conducting Ceramics 8",

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T1 - Oxide ion conductivity of LaNi0.6Fe0.4O3

AU - Nishi, M.

AU - Horita, T.

AU - Yamaji, K.

AU - Yokokawa, H.

AU - Shimonosono, T.

AU - Kishimoto, H.

AU - Brito, M. E.

AU - Cho, D.

AU - Wang, F.

PY - 2012

Y1 - 2012

N2 - 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.

AB - 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.

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M3 - Conference contribution

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EP - 180

BT - Ionic and Mixed Conducting Ceramics 8

PB - Electrochemical Society Inc.

T2 - Ionic and Mixed Conducting Ceramics 8 - 221st ECS Meeting

Y2 - 6 May 2012 through 10 May 2012

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