Enhanced thermal stability of SOFC anodes made with CeO2-ZrO2 solutions

被引：48

作者：

Ahn, KY ^{[1
]}

He, HP ^{[1
]}

Vohs, JM ^{[1
]}

Gorte, RJ ^{[1
]}

机构：

[1] Univ Penn, Dept Chem & Biomol Engn, Philadelphia, PA 19104 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2005年 / 8卷 / 08期

关键词：

D O I：

10.1149/1.1945374

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The effect on solid oxide fuel cell (SOFC) anode performance of replacing CeO2 with a Ce0.6Zr0.4O2 solid solution in Cu-ceria-yttria-stabilized zirconia (YSZ) composites was investigated. In both cases, the electrode composites were made by impregnation of porous YSZ with nitrate salts. Calcination of the CeO2 to 1273 K, prior to the addition of Cu, resulted in a large decrease in anode performance, with the anode impedance at 973 K in H-2 increasing from approximately 0.5 Omega cm(2) to greater than 2 Omega cm(2). Similar high-temperature treatment of Cu-Ce0.6Zr0.4O2-YSZ composites had much less effect on anode performance. (c) 2005 The Electrochemical Society.

引用

页码：A414 / A417

页数：4

共 26 条

[1] Synthesis of highly porous yttria-stabilized zirconia by tape-casting methods [J].

Boaro, M ;

Vohs, JM ;

Gorte, RJ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2003, 86 (03) :395-400

[2] Electrical properties of the ZrO2-CeO2 system [J].

Chiodelli, G ;

Flor, G ;

Scagliotti, M .

SOLID STATE IONICS, 1996, 91 (1-2) :109-121

[3] ELECTRICAL-PROPERTIES OF CERIA-BASED OXIDES AND THEIR APPLICATION TO SOLID OXIDE FUEL-CELLS [J].

EGUCHI, K ;

SETOGUCHI, T ;

INOUE, T ;

ARAI, H .

SOLID STATE IONICS, 1992, 52 (1-3) :165-172

[4] Modification of the redox behaviour of CeO2 induced by structural doping with ZrO2 [J].

Fornasiero, P ;

Balducci, G ;

DiMonte, R ;

Kaspar, J ;

Sergo, V ;

Gubitosa, G ;

Ferrero, A ;

Graziani, M .

JOURNAL OF CATALYSIS, 1996, 164 (01) :173-183

[5] Contribution of cerium/zirconium mixed oxides to the activity of a new generation of TWC [J].

González-Velasco, JR ;

Gutiérrez-Ortiz, MA ;

Marc, JL ;

Botas, JA ;

González-Marcos, MP ;

Blanchard, G .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1999, 22 (03) :167-178

[6]

Gorte RJ, 2000, ADV MATER, V12, P1465, DOI 10.1002/1521-4095(200010)12:19<1465::AID-ADMA1465>3.0.CO

[7]

2-9

[8] Effect of synthesis conditions on the performance of Cu-CeO2-YSZ anodes in SOFCs [J].

He, HP ;

Vohs, JM ;

Gorte, RJ .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2003, 150 (11) :A1470-A1475

[9] Thermal stability of oxygen storage properties in a mixed CeO2-ZrO2 system [J].

Hori, CE ;

Permana, H ;

Ng, KYS ;

Brenner, A ;

More, K ;

Rahmoeller, KM ;

Belton, D .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1998, 16 (02) :105-117

[10] Characterization of LSM-YSZ composites prepared by impregnation methods [J].

Huang, YY ;

Vohs, JM ;

Gorte, RJ .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (07) :A1347-A1353

← 1 2 3 →