期刊
CHEMELECTROCHEM
卷 3, 期 10, 页码 1541-1545出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/celc.201600163
关键词
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资金
- US. Department of Energy, Office of Energy Efficiency and Renewal Energy, Fuel Cell Technologies Office and Office of Sciences
- Chinese Scholarship Council
- Science and Technology Commission of Shanghai Municipality [14JC1491600]
- U.S. Department of Energy, Office of Science Laboratory [DEAC02-06CH11357]
We demonstrated that the oxygen reduction reaction (ORR) activity over catalysts derived from pyrolyzed cobalt zeolitic imidazolate frameworks (ZIFs) depends strongly on the imidazole ligand structure and cobalt content. The activity and durability of these catalysts were tested in the proton exchange membrane fuel cell for the first time. The membrane electrode assembly containing a catalyst derived from Co/Zn bimetallic ZIF at the cathode achieved an open-circuit voltage of 0.93 V, a current density of 28 mAcm(-2) at 0.8 ViR-free, and a peak power density of 374 mWcm(-2).
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