期刊
CHEMPLUSCHEM
卷 81, 期 8, 页码 718-723出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cplu.201600174
关键词
electrochemistry; energy conversion; fuel cells; metal-organic frameworks; reduction
资金
- National University of Singapore [CENGas R-261-508-001-646]
- Singapore Ministry of Education [MOE AcRF Tier 1 R-279-000-410-112, AcRF Tier 2 R-279-000-429-112]
A series of Fe/Fe3C-containing N-doped porous carbon materials (Fe/NC) were prepared by pyrolyzing composites that contained a metal-organic framework (MIL-88c-Fe) with dicyandiamide. The Fe/NC obtained at 800 degrees C (Fe/NC800) showed comparable onset potential and kinetics to that of the commercial Pt/C catalyst in catalyzing the oxygen reduction reaction (ORR). Further measurements suggested that it has better durability and much higher methanol tolerance than Pt/C. Acid leaching was performed to reveal the critical role of Fe-containing sites in ORR catalysis.
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