Oxygen permeation studies of Sr4Fe6-xCoxO13

被引：6

作者：

Armstrong, T ^{[1
]}

Guggilla, S ^{[1
]}

Manthiram, A ^{[1
]}

机构：

[1] Univ Texas, Texas Mat Inst, Austin, TX 78712 USA

来源：

MATERIALS RESEARCH BULLETIN | 1999年 / 34卷 / 06期

关键词：

oxides; X-ray diffraction; thermogravimetric analysis (TGA); electrical properties; ionic conductivity;

D O I：

10.1016/S0025-5408(99)00082-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The oxygen permeation properties of Sr4Fe6-xCoxO13 have been studied for 0 less than or equal to x less than or equal to 1.8. Samples with x > 1.5 consist of the perovskite phase SrFe1-xCoxO3-delta and the spinel phase Co3-xFexO4 in addition to the Sr4Fe6O13-type intergrowth phase. The total conductivity and the oxygen flux increase with increasing x. Although the oxygen flux in the undoped Sr4Fe6O13 remains constant, that in the x greater than or equal to 1.5 samples decreases upon cycling the permeation measurements. The decrease in oxygen flux on cycling is attributed to oxygen loss and changes in phase compositions at low oxygen partial pressures as indicated by thermogravimetric analysis. (C) 1999 Elsevier Science Ltd.

引用

页码：837 / 844

页数：8

共 15 条

[1] Crystal structure of the mixed conductor Sr4Fe4Co2O13
Fjellvag, H
Hauback, BC
Bredesen, R
[J]. JOURNAL OF MATERIALS CHEMISTRY, 1997, 7 (12) : 2415 - 2419
[2] Crystal chemical characterization of the mixed conductor Sr(Fe, Co)(1.5)O-y exhibiting unusually high oxygen permeability
Guggilla, S
Manthiram, A
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (05) : L120 - L122
[3] CRYSTALLOGRAPHIC PROPERTIES OF AND MOSSBAUER-EFFECT IN SR4FE6O13
KANAMARU, F
KOIZUMI, M
SHIMADA, M
[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1972, 33 (05) : 1169 - &
[4] OXIDE-ION CONDUCTION IN SOLID-SOLUTIONS LN(1-X)SR(X)COO(3-DELTA)(LN=LA,PR,ND)
KHARTON, VV
NAUMOVICH, EN
VECHER, AA
NIKOLAEV, AV
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1995, 120 (01) : 128 - 136
[5] Determination of oxygen permeation kinetics in a ceramic membrane based on the composition SrFeCo0.5O3.25-δ
Kim, S
Yang, YL
Christoffersen, R
Jacobson, AJ
[J]. SOLID STATE IONICS, 1998, 109 (3-4) : 187 - 196
[6] INFLUENCE OF ORDER-DISORDER TRANSITIONS ON OXYGEN PERMEABILITY THROUGH SELECTED NONSTOICHIOMETRIC PEROVSKITE-TYPE OXIDES
KRUIDHOF, H
BOUWMEESTER, HJM
VONDOORN, RHE
BURGGRAAF, AJ
[J]. SOLID STATE IONICS, 1993, 63-5 : 816 - 822
[7] Electrical transport properties and defect structure of SrFeCo0.5Ox
Ma, B
Balachandran, U
Park, JH
Segre, CU
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (05) : 1736 - 1744
[8] Determination of chemical diffusion coefficient of SrFeCo0.5Ox by the conductivity relaxation method
Ma, B
Balachandran, U
Park, JH
Segre, CU
[J]. SOLID STATE IONICS, 1996, 83 (1-2) : 65 - 71
[9] Ma B, 1995, MATER RES SOC SYMP P, V393, P49, DOI 10.1557/PROC-393-49
[10] THE INFLUENCE OF OXYGEN VARIATION ON THE CRYSTAL-STRUCTURE AND PHASE-COMPOSITION OF THE SUPERCONDUCTOR YBA2CU3O7-X
MANTHIRAM, A
SWINNEA, JS
SUI, ZT
STEINFINK, H
GOODENOUGH, JB
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1987, 109 (22) : 6667 - 6669

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