期刊
JOURNAL OF POWER SOURCES
卷 185, 期 1, 页码 193-196出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2008.06.075
关键词
Cathode; PrBaCo2O5+delta; Ce0.8Sm0.2O1.9; Solid oxide fuel cells
资金
- National Natural Science Foundation, China [10674034]
- National Foundation for Fostering Talent in Basic Science, China [J0730311]
PrBaCo2O5+delta (PBCO) powder was prepared by a combined EDTA and citrate complexing method. The electrochemical performance of PBCO as a cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs) was evaluated. A porous layer of PBCO was deposited on a 42 mu m thick electrolyte consisting of Ce0.8Sm0.2O1.9 (SDC), prepared by a dry-pressing process. A fuel cell with a structure PBCO/SDC/Ni-SDC provides a maximum power density of 866,583, 313 and 115 mW cm(-2) at 650, 600,550 and 500 degrees C, respectively, using hydrogen as the fuel and stationary air as the oxidant. The total resistance of the cell was about 0.41,0.51,0.57 and 0.77 Omega cm(2), respectively. This encouraging data identifies PBCO as a potential cathode material for IT-SOFCs. (c) 2008 Elsevier B.V. All rights reserved.
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