期刊
JOURNAL OF POWER SOURCES
卷 183, 期 2, 页码 586-589出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2008.05.082
关键词
LSCF; composite cathode; IT-SOFC; nano-structured; wet impregnation
资金
- NSFC [50571038]
- 863 Project [2006AA05Z148]
A nano-structured La0.8Sr0.2Co0.5Fe0.5O3 + Y2O3 doped ZrO2 (LSCF + YSZ) composite cathode was prepared by impregnation of a I-SCIF-containing solution into porous YSZ structure presintered on the YSZ electrolyte. The result shows that the LSCF phase was formed at 700 degrees C. forming a nano-structured, effective and functional LSCF + YSZ composite cathode that not only produces high triple phase boundaries for the O-2 reduction reaction, but also provides a Structurally stable interface between the LSCF and YSZ. The electrode polarization resistance for the O-2 reduction reaction is from 0.539 to 0.047 Omega cm(2) between 600 and 750 degrees C, indicating the promising potential the LSCF + YSZ as a high performance cathode for intermediate temperature solid oxide fuel cells. (C) 2008 Elsevier B.V. All rights reserved.
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