Electrode Properties of Ba0.5Sr0.5CoyFe1-yO3-δCathode Materials for Solid Oxide Fuel Cell |
| Journal |
Key Engineering Materials (Volume 388) |
| Volume |
Electroceramics in Japan XI |
| Edited by |
Kazumi Kato, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki |
| Pages |
49-52 |
| DOI |
10.4028/www.scientific.net/KEM.388.49 |
| Online since |
September, 2008 |
| Authors |
Shinya Asagi,
Shinya Suzuki,
Masaru Miyayama
|
| Keywords |
AC-Impedance Analysis, Ba0.5Sr0.5CoyFe1-yO3-δ, Cathode Material, Electrode Resistance, Electronic Conductivity, Solid Oxide Fuel Cell (SOFC) |
| Abstract |
The electrode properties of Ba0.5Sr0.5CoyFe1-yO3-δ {BSCF(5/5/10y/10(1-y))} on a Ce0.8Sm0.2O1.9
electrolyte were investigated. BSCF powders were synthesized by a solid-state reaction. The
electronic conductivities of BSCFs increased with increasing Co content and BSCF(5/5/8/2) showed
the highest conductivity of 38 S cm-1 at 600oC. The electrode resistance was measured on
symmetric cells, BSCF/Ce0.8Sm0.2O1.9/BSCF, over the temperature range from 600oC to 800oC. The
electrode resistances decreased with increasing Co content and BSCF(5/5/8/2) showed the lowest
electrode resistance in the whole temperature range, having an electrode resistance of 0.62 cm2 at
600oC. |
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