Journal
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
Volume 17, Issue 4, Pages 1089-1098Publisher
SPRINGER
DOI: 10.1007/s10008-012-1968-0
Keywords
Pt/N-graphene; Methanol electrooxidation; Fuel cell; Electrocatalyst
Categories
Funding
- National Natural Science Foundation of China [21003075]
- Basic Research Program (Natural Science Foundation) of Jiangsu Province of China [BK2010558]
- National Natural Science Foundation for Distinguished Young Scholars of China [51025209]
- US Army Research Office [W911NF-09-1-0528]
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In this work, we describe a facile single-step approach for the simultaneous reduction of graphene oxide to graphene, functional doping of graphene with nitrogen, and loading of the doped graphene with well-dispersed platinum (Pt) nanoparticles using a solvent mixture of ethylene glycol and N-methyl-2-pyrrolidone. The as-prepared Pt/nitrogen-doped graphene (N-graphene) catalysts are characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy while the electrocatalytic methanol oxidation properties of the catalysts are evaluated by cyclic voltammetry and chronoamperometry. Compared with an updoped Pt/graphene control catalyst, the Pt/N-graphene catalyst shows a narrower particle size distribution and improved catalytic performance. Considering the facile, green and effective single-step synthetic process for the Pt/N-graphene catalyst, the results are promising for the potential application of these materials in emerging fuel cell technologies.
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