| DOI | Trouver le DOI : https://doi.org/10.1039/c1ra00373a |
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| Auteur | Rechercher : Tsai, C.-W.; Rechercher : Tu, M.-H.; Rechercher : Chen, C.-J.; Rechercher : Hung, T.-F.; Rechercher : Liu, R.-S.; Rechercher : Liu, W.-R.; Rechercher : Lo, M.-Y.; Rechercher : Peng, Y.-M.; Rechercher : Zhang, L.1Identifiant ORCID : https://orcid.org/0000-0002-1823-2948; Rechercher : Zhang, J.1; Rechercher : Shy, D.-S.; Rechercher : Xing, X.-K. |
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| Affiliation | - Conseil national de recherches du Canada. Institut d'innovation en piles à combustible du CNRC
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| Format | Texte, Article |
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| Sujet | Catalytic 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 |
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| Résumé | Nitrogen-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. |
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| Date de publication | 2011-10-07 |
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| Maison d’édition | Royal Society of Chemistry |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21271059 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 5b82f732-b2d9-4660-ad3f-4d4047b912a3 |
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| Enregistrement créé | 2014-03-24 |
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| Enregistrement modifié | 2021-08-19 |
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