Oxygen isotope exchange with a dense La0.6Sr0.4CoO3-δ electrode on a Ce0.9Ca0.1O1.9 electrolyte

T. Kawada; K. Masuda; J. Suzuki; A. Kaimai; K. Kawamura; Y. Nigara; J. Mizusaki; H. Yugami; H. Arashi; N. Sakai; H. Yokokawa

doi:10.1016/S0167-2738(99)00046-6

Oxygen isotope exchange with a dense La_0.6Sr_0.4CoO_3-δ electrode on a Ce_0.9Ca_0.1O_1.9 electrolyte

T. Kawada, K. Masuda, J. Suzuki, A. Kaimai, K. Kawamura, Y. Nigara, J. Mizusaki, H. Yugami, H. Arashi, N. Sakai, H. Yokokawa

Research output: Contribution to journal › Conference article › peer-review

114 Citations (Scopus)

Abstract

Oxygen isotope exchange experiments were carried out with a dense La_0.6Sr_0.4CoO_3-δ film (0.5 μm thick) deposited on a Ce_0.9Ca_0.1O_1.9 substrate by a laser ablation method. The isotope exchange profile was measured from the surface into the electrolyte by a secondary ion mass spectrometer (SIMS). The oxygen diffusion through the La_0.6Sr_0.4CoO_3δ film was fast enough not to make any observable gradient in oxygen isotope concentration inside the film. The surface isotope exchange rate, k*, was calculated from the diffusion profile into the electrolyte layer. The electrochemical impedance, σ_E, was compared with k*. The oxygen partial pressure dependence of those two parameters were quite similar. The absolute value of k* was larger than expected from σ_E by a factor of 2 or higher.

Original language	English
Pages (from-to)	271-279
Number of pages	9
Journal	Solid State Ionics
Volume	121
Issue number	1
DOIs	https://doi.org/10.1016/S0167-2738(99)00046-6
Publication status	Published - 1999 Jun
Event	Proceedings of the 1997 11th International Conference on Solid State Ionics, SSI-97 - Honolulu, HI, USA Duration: 1997 Nov 16 → 1997 Nov 21

ASJC Scopus subject areas

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

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Oxygen isotope exchange with a dense La_0.6Sr_0.4CoO_3-δ electrode on a Ce_0.9Ca_0.1O_1.9 electrolyte. / Kawada, T.; Masuda, K.; Suzuki, J.; Kaimai, A.; Kawamura, K.; Nigara, Y.; Mizusaki, J.; Yugami, H.; Arashi, H.; Sakai, N.; Yokokawa, H.

In: Solid State Ionics, Vol. 121, No. 1, 06.1999, p. 271-279.

Research output: Contribution to journal › Conference article › peer-review

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title = "Oxygen isotope exchange with a dense La0.6Sr0.4CoO3-δ electrode on a Ce0.9Ca0.1O1.9 electrolyte",

abstract = "Oxygen isotope exchange experiments were carried out with a dense La0.6Sr0.4CoO3-δ film (0.5 μm thick) deposited on a Ce0.9Ca0.1O1.9 substrate by a laser ablation method. The isotope exchange profile was measured from the surface into the electrolyte by a secondary ion mass spectrometer (SIMS). The oxygen diffusion through the La0.6Sr0.4CoO3δ film was fast enough not to make any observable gradient in oxygen isotope concentration inside the film. The surface isotope exchange rate, k*, was calculated from the diffusion profile into the electrolyte layer. The electrochemical impedance, σE, was compared with k*. The oxygen partial pressure dependence of those two parameters were quite similar. The absolute value of k* was larger than expected from σE by a factor of 2 or higher.",

author = "T. Kawada and K. Masuda and J. Suzuki and A. Kaimai and K. Kawamura and Y. Nigara and J. Mizusaki and H. Yugami and H. Arashi and N. Sakai and H. Yokokawa",

note = "Copyright: Copyright 2017 Elsevier B.V., All rights reserved.; Proceedings of the 1997 11th International Conference on Solid State Ionics, SSI-97 ; Conference date: 16-11-1997 Through 21-11-1997",

year = "1999",

month = jun,

doi = "10.1016/S0167-2738(99)00046-6",

language = "English",

volume = "121",

pages = "271--279",

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T1 - Oxygen isotope exchange with a dense La0.6Sr0.4CoO3-δ electrode on a Ce0.9Ca0.1O1.9 electrolyte

AU - Kawada, T.

AU - Masuda, K.

AU - Suzuki, J.

AU - Kaimai, A.

AU - Kawamura, K.

AU - Nigara, Y.

AU - Mizusaki, J.

AU - Yugami, H.

AU - Arashi, H.

AU - Sakai, N.

AU - Yokokawa, H.

PY - 1999/6

Y1 - 1999/6

N2 - Oxygen isotope exchange experiments were carried out with a dense La0.6Sr0.4CoO3-δ film (0.5 μm thick) deposited on a Ce0.9Ca0.1O1.9 substrate by a laser ablation method. The isotope exchange profile was measured from the surface into the electrolyte by a secondary ion mass spectrometer (SIMS). The oxygen diffusion through the La0.6Sr0.4CoO3δ film was fast enough not to make any observable gradient in oxygen isotope concentration inside the film. The surface isotope exchange rate, k*, was calculated from the diffusion profile into the electrolyte layer. The electrochemical impedance, σE, was compared with k*. The oxygen partial pressure dependence of those two parameters were quite similar. The absolute value of k* was larger than expected from σE by a factor of 2 or higher.

AB - Oxygen isotope exchange experiments were carried out with a dense La0.6Sr0.4CoO3-δ film (0.5 μm thick) deposited on a Ce0.9Ca0.1O1.9 substrate by a laser ablation method. The isotope exchange profile was measured from the surface into the electrolyte by a secondary ion mass spectrometer (SIMS). The oxygen diffusion through the La0.6Sr0.4CoO3δ film was fast enough not to make any observable gradient in oxygen isotope concentration inside the film. The surface isotope exchange rate, k*, was calculated from the diffusion profile into the electrolyte layer. The electrochemical impedance, σE, was compared with k*. The oxygen partial pressure dependence of those two parameters were quite similar. The absolute value of k* was larger than expected from σE by a factor of 2 or higher.

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U2 - 10.1016/S0167-2738(99)00046-6

DO - 10.1016/S0167-2738(99)00046-6

M3 - Conference article

AN - SCOPUS:0032680792

VL - 121

SP - 271

EP - 279

JO - Solid State Ionics

JF - Solid State Ionics

SN - 0167-2738

IS - 1

T2 - Proceedings of the 1997 11th International Conference on Solid State Ionics, SSI-97

Y2 - 16 November 1997 through 21 November 1997

ER -

Oxygen isotope exchange with a dense La_0.6Sr_0.4CoO_3-δ electrode on a Ce_0.9Ca_0.1O_1.9 electrolyte

Abstract

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