Polybenzoxazine-derived N-doped carbon as matrix for powder-based electrocatalysts
Barwe, Stephan (Ruhr-Universität Bochum. Center for Electrochemical Sciences)
Andronescu, Corina (Ruhr-Universität Bochum. Center for Electrochemical Sciences)
Masa, Justus (Ruhr-Universität Bochum. Center for Electrochemical Sciences)
Ventosa, Edgar (Ruhr-Universität Bochum. Center for Electrochemical Sciences)
Klink, Stefan (Ruhr-Universität Bochum. Center for Electrochemical Sciences)
Genç, Aziz (Institut Català de Nanociència i Nanotecnologia)
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia)
Schuhmann, Wolfgang (Ruhr-Universität Bochum (Alemanya))

Data:	2017
Resum:	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.
Ajuts:	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
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Matèria:	Catalyst stability ; Electrocatalysis ; Oxygen evolution reaction ; Polybenzoxazine ; Prussian blue analogue
Publicat a:	ChemSusChem, Vol. 10, issue 12 (June 2017) , p. 2653-2659, ISSN 1864-564X

DOI: 10.1002/cssc.201700593

Postprint 9 p, 1.2 MB

El registre apareix a les col·leccions:
Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > Institut Català de Nanociència i Nanotecnologia (ICN2)
Articles > Articles de recerca
Articles > Articles publicats