Abstract
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.
Original language | English |
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Journal | ChemSusChem (Print) |
Volume | 7 |
Issue number | 8 |
Pages (from-to) | 2099-2103 |
Number of pages | 5 |
ISSN | 1864-5631 |
DOIs | |
Publication status | Published - 2014 |
Keywords
- CHEMISTRY,
- NITROGEN-DOPED GRAPHENE
- EFFICIENT ELECTROCATALYST
- FUNCTIONALIZED GRAPHENE
- LAYER GRAPHENE
- CATALYSTS
- CARBON
- OXIDE
- SUPERCAPACITORS
- NANOPARTICLES
- SULFUR
- fuel cell
- graphene
- iron carbide
- nanoparticle
- oxygen reduction