Journal
CHEMSUSCHEM
Volume 7, Issue 8, Pages 2099-2103Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201402183
Keywords
fuel cell; graphene; iron carbide; nanoparticle; oxygen reduction
Funding
- Danish ForskEL programme (CATBOOSTER)
- Danish Council for Strategic Research (4M Centre)
- National Basic Research Program (973 Program) [National Basic Research Program (973 Program, 2012CB215500]
- National High Technology Research and Development Program (863 Program) of China [2012AA053401]
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We present a novel approach to direct fabrication of few-layer graphene sheets with encapsulated Fe3C nanoparticles from pyrolysis of volatile non-graphitic precursors without any substrate. This one-step autoclave approach is facile and potentially scalable for production. Tested as an electrocatalyst, the graphene-based composite exhibited excellent catalytic activity towards the oxygen reduction reaction in alkaline solution with an onset potential of ca. 1.05 V (vs. the reversible hydrogen electrode) and a half-wave potential of 0.83 V, which is comparable to the commercial Pt/C catalyst.
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