Nitrogen-doped graphene nanosheet-supported non-precious iron nitride nanoparticles as an efficient electrocatalyst for oxygen reduction

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DOIResolve DOI: http://doi.org/10.1039/c1ra00373a
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TypeArticle
Journal titleRSC Advances
ISSN2046-2069
Volume1
Issue7
Pages13491357; # of pages: 9
SubjectCatalytic active sites; Electrocatalytic activity; Fourier transform infrared; Graphite oxide; Iron nitride nanoparticles; Iron nitrides; N-doped; Nano-assemblies; Nitrogen-doped; Non-precious metals; Oxygen Reduction; Oxygen reduction reaction; Electrocatalysts; Electrolytic reduction; Fuel cells; Iron; Nitrides; Nitrogen; Precious metals; Scanning electron microscopy; Synthesis (chemical); X ray absorption spectroscopy; X ray diffraction; X ray photoelectron spectroscopy; Graphene
AbstractNitrogen-doped graphene-supported carbon-containing iron nitride (FeCN/NG) was synthesized by the chemical impregnation of iron and nitrogen-containing precursors in the presence of ammonia under thermal treatment. The resultant graphene-based material acted as an electrode with a much higher electrocatalytic activity in the catalysis via a 4-electron pathway in fuel cells. The results of X-ray diffraction, scanning electron microscopy, Fourier transform infrared and X-ray photoelectron spectroscopy indicated that graphite oxide was successfully reduced to nitrogen-doped graphene. X-Ray absorption spectroscopy further confirmed that carbon was incorporated into iron nitride, demonstrating that Fe-N-C catalytic active sites may be responsible for the oxygen reduction reaction. To the best of our knowledge, this is the first report of the combination of N-doped graphene with non-precious metal for oxygen reduction in fuel cells, and may open up a new possibility for preparing graphene-based nanoassemblies for intensive applications. © 2011 The Royal Society of Chemistry.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Fuel Cell Innovation (IFCI-IIPC)
Peer reviewedYes
NPARC number21271059
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Record identifier5b82f732-b2d9-4660-ad3f-4d4047b912a3
Record created2014-03-24
Record modified2016-05-09
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