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Copper-cobalt foams as active and stable catalysts for hydrogen release by hydrolysis of sodium borohydride

2016-06-01Journal article Restricted access
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dc.contributor.authorEugénio, Sónia
dc.contributor.authorDemirci, Umit B.
dc.contributor.authorSilva, Maria Teresa Oliveira de Moura e
dc.contributor.authorCarmezim, Maria João
dc.contributor.authorMontemor, Maria Fátima
dc.date.accessioned2016-06-28T15:28:14Z
dc.date.available2016-06-28T15:28:14Z
dc.date.issued2016-06-01
dc.description.abstractThe progress of hydrogen generation by sodium borohydride hydrolysis depends highly on the development of efficient catalysts based on non-noble metals such as cobalt. However, such catalysts undergo extensive deactivation which has a detrimental effect on their stability. Herein, highly porous copper and cobalt-based bimetallic foams, CuxCo100-x (x = 0-100 at%), produced by electrodeposition using the dynamic hydrogen bubble template are reported. The chemical composition of the foams was optimized in order to enhance specific surface area and improve their catalytic activity and stability as heterogeneous catalysts for sodium borohydride hydrolysis. Among the tested catalysts, copper-rich samples like Cu85Co15 are slightly more active than Co-100 and above all, they are less sensitive to deactivation by borates adsorption. Porous copper-rich foams were found to be an alternative to cobalt as low-cost, active and stable heterogeneous catalysts for hydrogen generation by hydrolysis of sodium borohydride. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.pt_PT
dc.identifier.citationEUGÉNIO, Sónia; [et al.]; - Copper-cobalt foams as active and stable catalysts for hydrogen release by hydrolysis of sodium borohydride. International journal of hydrogen energy. ISSN 0360-3199. Vol. 41, N.º 20 (2016), pp. 8438-8448pt_PT
dc.identifier.doidoi:10.1016/j.ijhydene.2016.03.122pt_PT
dc.identifier.issn0360-3199
dc.identifier.urihttp://hdl.handle.net/10400.21/6252
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherPergamon-Elsevier Science Ltdpt_PT
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0360319915307321pt_PT
dc.subjectElectrodepositionpt_PT
dc.subjectCopper-cobalt metallic foamspt_PT
dc.subjectSodium borohydridept_PT
dc.subjectHydrolysispt_PT
dc.titleCopper-cobalt foams as active and stable catalysts for hydrogen release by hydrolysis of sodium borohydridept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage8448pt_PT
oaire.citation.issue20pt_PT
oaire.citation.startPage8438pt_PT
oaire.citation.volume41pt_PT
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT

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