A new candidate as the cathode material for intermediate and low temperature SOFCs

作者：Li Song; Sun Xueli; Wen Zhongsheng; Sun Juncai^*

来源：Rare Metals, 2006, 25: 213-217.

DOI：10.1016/S1001-0521(07)60076-X

• LaNi1-xFexO3
• cathode materials
• coprecipitation method
• IT/LTSOFC

In order to develop the new cathode materials suitable for intermediate and low temperature solid oxide fuel cells (IT/LTSOFCs), LaNi1-xFexO3 (x = 0.4 - 0.8) (LNF) materials were synthesized using co-precipitation method. Their structures and morphologies were investigated by XRD and SEM, and their electronic conductivities at different temperatures were measured by do four terminal method. Fuel cells were fabricated to evaluate the electrochemical properties of the LNF materials as cathodes at different temperatures. The performance of 450 - 497 mW center dot cm(-2) was obtained in the temperature region of 580 - 650 degrees C for the LaNi0.2Fe0.8O3 cathode, and of 209 - 227 mW center dot cm(-2) at 400 - 500 degrees C for the LaNi0.4Fe0.6O3. The excellent fuel cell performances indicate that the LNF materials are good cathodes for IT/LTSOFCs.

• 出版日期2006-10
• 单位大连海事大学