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Página principal > Artículos > Artículos publicados > Polybenzoxazine-derived N-doped carbon as matrix for powder-based electrocatalysts |
Fecha: | 2017 |
Resumen: | In addition to catalytic activity, intrinsic stability, tight immobilization on a suitable electrode surface, and sufficient electronic conductivity are fundamental prerequisites for the long-term operation of particle- and especially powder-based electrocatalysts. We present a novel approach to concurrently address these challenges by using the unique properties of polybenzoxazine (pBO) polymers, namely near-zero shrinkage and high residual-char yield even after pyrolysis at high temperatures. Pyrolysis of a nanocubic prussian blue analogue precursor (Km Mnx [Co(CN)₆]y⋅nH₂O) embedded in a bisphenol A and aniline-based pBO led to the formation of a N-doped carbon matrix modified with MnxCoyOz nanocubes. The obtained electrocatalyst exhibits high efficiency toward the oxygen evolution reaction (OER) and more importantly a stable performance for at least 65 h. |
Ayudas: | Ministerio de Economía y Competitividad MAT2014-59961-C2-2-R Ministerio de Economía y Competitividad SEV-2013-0295 Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-1638 |
Derechos: | Tots els drets reservats. |
Lengua: | Anglès |
Documento: | Article ; recerca ; Versió acceptada per publicar |
Materia: | Catalyst stability ; Electrocatalysis ; Oxygen evolution reaction ; Polybenzoxazine ; Prussian blue analogue |
Publicado en: | ChemSusChem, Vol. 10, issue 12 (June 2017) , p. 2653-2659, ISSN 1864-564X |
Postprint 9 p, 1.2 MB |