| DOI | Trouver le DOI : https://doi.org/10.1149/1.3566065 |
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| Auteur | Rechercher : Nallathambi, V.; Rechercher : Leonard, N.; Rechercher : Kothandaraman, R.1; Rechercher : Barton, S.C. |
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| Affiliation | - Conseil national de recherches du Canada
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| Format | Texte, Article |
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| Sujet | Active catalyst; Active site density; Carbon deposition; Carbon support; Cathode catalyst; Constant volumes; Kinetic currents; Nitrogen-carbon; Oxygen reduction catalysts; Precursor effect; Reaction vessel; Catalysts; Electrolytic reduction; Melamine formaldehyde resins; Oxygen; Pyrolysis; Nitrogen |
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| Résumé | Metal-nitrogen-carbon (MNC) cathode catalysts were synthesized using nitrogen precursors of varying NitrogenCarbon (NC) ratio by pyrolysis in a constant volume reaction vessel. Here, we demonstrate that increasing a key property, the NC ratio of the nitrogen precursor increased the accessible active site density by reducing carbon deposition in the pores of the carbon support during pyrolysis. The most active catalysts were obtained in this work using melamine, having a NC ratio of 2. Kinetic current density as high as 13 A cm-3 at 0.8 ViR-free and over 100 h of stable current at 0.5 V were observed with melamine based MNC catalysts. © 2011 The Electrochemical Society. |
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| Date de publication | 2011 |
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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 | 21271708 |
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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 | 19e2ba69-6066-44d2-b660-ae582a0c002b |
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| Enregistrement créé | 2014-03-24 |
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| Enregistrement modifié | 2020-04-21 |
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