| DOI | Trouver le DOI : https://doi.org/10.1016/j.carbon.2014.04.092 |
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| Auteur | Rechercher : Monteverde Videla, Alessandro H. A.; Rechercher : Ban, Shuai1; Rechercher : Specchia, Stefania; Rechercher : Zhang, Lei1Identifiant ORCID : https://orcid.org/0000-0002-1823-2948; Rechercher : Zhang, Jiujun1 |
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| Affiliation | - Conseil national de recherches du Canada. Énergie, les mines et l'environnement
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| Format | Texte, Article |
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| Sujet | Electrolytic reduction; Glass membrane electrodes; Graphene; Atomic concentration; Catalyst preparation; Catalyst surfaces; Electron transfer; Glassy carbon electrodes; Oxygen reduction reaction; Reduced graphene oxides; Reduced graphene oxides (RGO); Electrocatalysts |
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| Résumé | In this paper, the reduced graphene oxide (rGO) is synthesized from graphite oxide (GO) via microwave exfoliation method, and used to support non-noble metal Fe-NX based electrocatalysts (Fe-NX/rGO) for the oxygen reduction reaction (ORR). Tripyridyl triazine (TPTZ) is used as a ligand for Fe-NX catalyst preparation. The obtained catalyst presents a high content of pyridinic (N1) and pyrrolic (N2) nitrogen types on the catalyst surface (40.0% and 52.3% atomic concentrations, respectively) with Fe atomic content of 0.7%. A catalyst loading of 0.5 mg cm- 2 with a ionomer-to-carbon (ITC) mass ratio of 0.2 deposited on the glassy carbon electrode allows the highest ORR activity with the specific current of -0.35 mA mg-1 at a cell voltage of 0.8 V (vs. RHE). The overall electron transfer number obtained is of 3.98. Stability tests in acidic solution for this catalyst are also performed. |
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| Date de publication | 2014-09 |
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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 | 21272787 |
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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 | 544c84a1-af09-4b3a-bafd-31f1792b1ef0 |
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| Enregistrement créé | 2014-12-03 |
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| Enregistrement modifié | 2021-08-13 |
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