Enhancement of oxygen surface exchange at the hetero-interface of (La,Sr)CoO3/(La,Sr)2CoO4 with PLD-Layered films

被引：98

作者：

Sase, M. ^{[1
,2
]}

Hermes, F. ^{[2
]}

Yashiro, K. ^{[2
]}

Sato, K. ^{[2
]}

Mizusaki, J. ^{[2
]}

Kawada, T. ^{[1
]}

Sakai, N. ^{[3
]}

Yokokawa, H. ^{[3
]}

机构：

[1] Tohoku Univ, Grad Sch Environm Studies, Aoba Ku, Sendai, Miyagi 9808579, Japan

[2] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[3] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2008年 / 155卷 / 08期

关键词：

D O I：

10.1149/1.2928612

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The preferential site for oxygen isotope exchange was investigated on layered films of La(2-x)Sr(x)CoO(4) (x=0.5,1.0)/La(0.6)Sr(0.4)CoO(3) prepared by pulsed laser deposition (PLD) on a polycrystalline Ce(0.9)Gd(0.1)O(1.95). An isotope exchange experiment was performed at 773 K in (18)O-enriched oxygen of 0.2x10(5) Pa. Three-dimensional imaging of secondary ion mass spectrometry (SIMS) was carried out to visualize the isotope distribution. The SIMS images suggested that there are fast oxygen-incorporation paths along the hetero-phase interface of La(2-x)Sr(x)CoO(4)/La(0.6)Sr(0.4)CoO(3). The results have reproduced our former findings on the fast oxygen surface exchange with La(2-x)Sr(x)CoO(4)/La(0.6)Sr(0.4)CoO(3) composite polycrystals. (C) 2008 The Electrochemical Society.

引用

页码：B793 / B797

页数：5

共 22 条

[1] Oxides of the AMO3 and A2MO4-type:: structural stability, electrical conductivity and thermal expansion
Al Daroukh, M
Vashook, VV
Ullmann, H
Tietz, F
Raj, IA
[J]. SOLID STATE IONICS, 2003, 158 (1-2) : 141 - 150
[2] A comparative study of the Ruddlesden-Popper series, Lan+1NinO3n+1 (n=1, 2 and 3), for solid-oxide fuel-cell cathode applications
Amow, G.
Davidson, I. J.
Skinner, S. J.
[J]. SOLID STATE IONICS, 2006, 177 (13-14) : 1205 - 1210
[3] Phase Equilibria in the La-Me-Co-O (Me=Ca, Sr, Ba) Systems
Cherepanov, V. A.
Gavrilova, L. Ya.
Barkhatova, L. Yu.
Voronin, V. I.
Trifonova, M. V.
Bukhner, O. A.
[J]. IONICS, 1998, 4 (3-4) : 309 - 315
[4] La-based perovskite precursors preparation and its catalytic activity for CO2 refonning of CH4
Guo, JJ
Lou, H
Zhu, YH
Zheng, XM
[J]. MATERIALS LETTERS, 2003, 57 (28) : 4450 - 4455
[5] HEAP R, 2005, EELECTROCHEMICAL SOC, P1726
[6] TERNARY COMPOUNDS IN SYSTEM LA-CO-O
JANECEK, JJ
WIRTZ, GP
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1978, 61 (5-6) : 242 - 244
[7] Oxygen isotope exchange with a dense La0.6Sr0.4CoO3-δ electrode on a Ce0.9Ca0.1O1.9 electrolyte
Kawada, T
Masuda, K
Suzuki, J
Kaimai, A
Kawamura, K
Nigara, Y
Mizusaki, J
Yugami, H
Arashi, H
Sakai, N
Yokokawa, H
[J]. SOLID STATE IONICS, 1999, 121 (1-4) : 271 - 279
[8] Kawada T, 2001, ELEC SOC S, V2001, P529
[9] Microscopic observation of oxygen reaction pathway on high temperature electrode materials
Kawada, Tatsuya
Sase, Maya
Kudo, Masakazu
Yashiro, Keiji
Sato, Kazuhisa
Mizusaki, Junichiro
Sakai, Natsuko
Horita, Teruhisa
Yamaji, Katsuhiko
Yokokawa, Harumi
[J]. SOLID STATE IONICS, 2006, 177 (35-36) : 3081 - 3086
[10] ELECTRICAL-PROPERTIES OF LA2-XSRXCOO4 .1. STRUCTURE, ELECTRICAL-CONDUCTIVITY, AND SEEBECK COEFFICIENT OF SINGLE-CRYSTALS (X = 0.0, 0.5, 1.0 AND 1.5)
MATSUURA, T
TABUCHI, J
MIZUSAKI, J
YAMAUCHI, S
FUEKI, K
[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1988, 49 (12) : 1403 - 1408

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