Optimized lanthanum ferrite-based cathodes for anode-supported SOFCs

被引：169

作者：

Simner, SP ^{[1
]}

Bonnett, JF ^{[1
]}

Canfield, NL ^{[1
]}

Meinhardt, KD ^{[1
]}

Sprenkle, VL ^{[1
]}

Stevenson, JW ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Dept Mat Sci, Richland, WA 99352 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2002年 / 5卷 / 07期

关键词：

Anodes - Cathodes - Composition - Electric conductivity of solids - Ionic conduction in solids - Sintering - Solid oxide fuel cells - Thermal expansion;

D O I：

10.1149/1.1483156

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Three cathode compositions (La0.8Sr0.2FeO3-delta,La0.7Sr0.3 Fe0.8Ni0.2O3-delta, and LaNi0.6Fe0.4O3-delta) have been tested as solid oxide fuel cell (SOFC) cathodes at operating temperatures from 650 to 750degrees C. Sintering temperatures were established for each cathode composition to provide optimized cell performance. La0.8Sr0.2FeO3-delta exhibited the highest power density (>900 mW/cm(2) at 750degrees C and 0.7 V), and indicated excellent performance stability over a 300 h period. (C) 2002 The Electrochemical Society.

引用

页码：A173 / A175

页数：3

共 9 条

[1] An investigation of LaNi1-xFexO3 as a cathode material for solid oxide fuel cells [J].

Chiba, R ;

Yoshimura, F ;

Sakurai, Y .

SOLID STATE IONICS, 1999, 124 (3-4) :281-288

[2] GLYCINE NITRATE COMBUSTION SYNTHESIS OF OXIDE CERAMIC POWDERS [J].

CHICK, LA ;

PEDERSON, LR ;

MAUPIN, GD ;

BATES, JL ;

THOMAS, LE ;

EXARHOS, GJ .

MATERIALS LETTERS, 1990, 10 (1-2) :6-12

[3] Reactions between a zirconia-based electrolyte and LaCoO3-based electrode materials [J].

Figueiredo, FM ;

Labrincha, JA ;

Frade, JR ;

Marques, FMB .

SOLID STATE IONICS, 1997, 101 :343-349

[4] Sr- and Ni-doped LaCaO3 and LaFeO3 perovskites -: New cathode materials for solid-oxide fuel cells [J].

Huang, K ;

Lee, HY ;

Goodenough, JB .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1998, 145 (09) :3220-3227

[5] Oxygen permeability of LaFe1-xNixO3-δ solid solutions [J].

Kharton, VV ;

Viskup, AP ;

Naumovich, EN ;

Tikhonovich, VN .

MATERIALS RESEARCH BULLETIN, 1999, 34 (08) :1311-1317

[6]

Ralph JM, 2001, ELEC SOC S, V2001, P466

[7] MIXED IONIC-ELECTRONIC CONDUCTIVITY OF LA1-XSRXCO1-YFEYO3-DELTA PEROVSKITE-TYPE OXIDES [J].

TERAOKA, Y ;

ZHANG, HM ;

OKAMOTO, K ;

YAMAZOE, N .

MATERIALS RESEARCH BULLETIN, 1988, 23 (01) :51-58

[8] Increased solid-oxide fuel cell power density using interfacial ceria layers [J].

Tsai, T ;

Barnett, SA .

SOLID STATE IONICS, 1997, 98 (3-4) :191-196

[9] Correlation between thermal expansion and oxide ion transport in mixed conducting perovskite-type oxides for SOFC cathodes [J].

Ullmann, H ;

Trofimenko, N ;

Tietz, F ;

Stöver, D ;

Ahmad-Khanlou, A .

SOLID STATE IONICS, 2000, 138 (1-2) :79-90

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