Preparation of SOFC electrode powders by the aerosol flow pyrolysis method and characteristics of the electrodes
- Japan Fine Ceramics Center, Nagoya (Japan)
The aerosol flow pyrolysis (AFP) method has recently been applied to the research of various materials such as catalyst and superconductor because of the fine powders, narrow particle size distribution and high dispersibility. SOFC electrode powders were also prepared by the aerosol flow pyrolysis method in this study. Using this method, fine powders with smaller than 1 {micro}m in mean particle size and narrow particle size distribution were obtained. The cathode (La(Sr)MnO{sub 3}/YSZ) formed by the AFP-powder showed excellent properties in cell performance. In a single cell test using these electrodes, 0.3W/cm{sup 2} power density was measured in an electrolyte of 1 mm thickness. In the anode (Ni/YSZ), the desirable morphology, one Ni grain was surrounded with YSZ (8mol% Y{sub 2}O{sub 3} stabilized ZrO{sub 2}) grains, for long term stability and high efficiency was obtained.
- OSTI ID:
- 242531
- Report Number(s):
- CONF-950683--; ISBN 1-56677-095-5
- Country of Publication:
- United States
- Language:
- English
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