期刊
JOURNAL OF POWER SOURCES
卷 196, 期 23, 页码 9965-9969出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2011.08.023
关键词
Solid oxide fuel cells; Ni-based anode; Fe-doped; MgO; Carbon fiber growth
资金
- National Science Foundation of China (NSFC) [20976063]
- 863 Program of China [2007AA05Z136]
(Ni0.75Fe0.25-xMgO)/YSZ samples-with a varying weight percentage x (0, 5%. 10%) of MgO with respect to Ni0.75Fe0.25-were prepared and studied as anodes for intermediate temperature solid oxide fuel cells (SOFCs) operated on humidified methane (3% H2O). Among the cells with different anode compositions, it was found that the cell with the (Ni0.75Fe0.25-5%MgO)/YSZ anode showed the highest power density, giving 648 mW cm(-2) at 800 degrees C. The cells with MgO-doped anodes were able to operate stably for 20 h under a current density of 0.53 A cm(-2) at 700 degrees C without observed degradation, while the cells without MgO degraded rapidly. The mechanisms responsible for the superior performance and duration of the (Ni0.75Fe0.25-xMgO)/YSZ anode were analyzed. (C) 2011 Elsevier B.V. All rights reserved.
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