期刊
APPLIED ENERGY
卷 141, 期 -, 页码 200-208出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2014.12.048
关键词
Solid oxide-based carbon fuel cells; Coal char; Coal mineral matter; Catalytic effects; Boudouard gasification
资金
- National Science Foundation for Distinguished Young Scholars of China [51025209]
- Foundation of State Key Laboratory of Coal Conversion of China [J14-15-913-2]
- Shanxi Scholarship Council of China [2014-015]
- Program for Innovation Infrastructure Construction of Shanxi of China [2014091019]
- Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province, China
The use of industrial coal char as a fuel source for an anode-supported solid oxide-based carbon fuel cell (SO-CFC) with a yttrium-stabilized zirconia electrolyte and La0.8Sr0.2MnO3 cathode was investigated. Both the Boudouard reactivity and electrochemical performance of the coal char samples are higher than those of activated carbon samples under the same conditions. The inherent catalytic activity of the metal species (Fe-m, O-n, CaO, etc.) in the coal char mineral matter leads to good cell performance, even in the absence of an external catalyst. For example, the peak power density of a cell fueled with pure coal char is 100 mW cm(-2) at 850 degrees C, and that of a cell fueled with coal char impregnated with an FemOn-alkaline metal oxide catalyst is 204 mW cm(-2). These results suggest that using coal char as the fuel in SO-CFCs might be an attractive way to utilize abundant coal resources cleanly and efficiently, providing an alternative for future power generation. (C) 2014 Elsevier Ltd. All rights reserved.
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