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dc.contributor.authorMartínez, Lester
dc.contributor.authorSoler Turu, Lluís
dc.contributor.authorAngurell Purroy, Inmaculada
dc.contributor.authorLlorca Piqué, Jordi
dc.contributor.otherUniversitat Politècnica de Catalunya. Institut de Tècniques Energètiques
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2019-05-24T09:46:11Z
dc.date.available2021-07-05T00:29:59Z
dc.date.issued2019-07-05
dc.identifier.citationMartínez, L. [et al.]. Effect of TiO 2 nanoshape on the photoproduction of hydrogen from water-ethanol mixtures over Au 3 Cu/TiO 2 prepared with preformed Au-Cu alloy nanoparticles. "Applied catalysis B. Environmental", 5 Juliol 2019, vol. 248, núm. July, p. 504-514.
dc.identifier.issn0926-3373
dc.identifier.urihttp://hdl.handle.net/2117/133435
dc.description.abstractA series of TiO2 nanoshapes (microurchins, nanobelts, nanowires, microrods and nanotubes) were prepared and decorated with preformed nanoparticles of Au-Cu alloy (Au:Cu¿=¿3:1 molar, 1¿wt.% metal content). The resulting photocatalysts were tested for the photogeneration of hydrogen using water-ethanol gaseous mixtures (H2O:EtOH¿=¿1:9 molar basis) under dynamic conditions (26,000 h-1) and compared with a conventional sample prepared using P25. The use of preformed nanoparticles of Au-Cu alloy with the same geometric and electronic characteristics ensured a proper assessment of the influence of the different TiO2 supports on the photoproduction of hydrogen by providing a similar number and quality of metal-support contact points. The yield of hydrogen produced on a weight basis over the Au3Cu/TiO2 samples followed the trend microrods ~P25¿>¿>nanotubes¿>¿nanowires¿>¿nanobelts¿>¿microurchins. A stable hydrogen photogeneration rate of ca. 270¿µmol H2¿g-1¿min-1 was obtained over titania microrods decorated with Au3Cu whereas the photogeneration of hydrogen over P25 decorated with Au3Cu decreased progressively over time on stream.
dc.format.extent11 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Energies
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshAlloys
dc.subject.lcshCopper alloys
dc.subject.lcshNanotechnology
dc.subject.lcshPhotocatalysis
dc.subject.lcshHydrogen
dc.subject.otherPhotocatalysis
dc.subject.otherTitanium dioxide
dc.subject.otherNanoshapes
dc.subject.otherAu-Cu nanoparticles
dc.subject.otherHydrogen
dc.titleEffect of TiO 2 nanoshape on the photoproduction of hydrogen from water-ethanol mixtures over Au 3 Cu/TiO 2 prepared with preformed Au-Cu alloy nanoparticles
dc.typeArticle
dc.subject.lemacAliatges
dc.subject.lemacCoure--Aliatges
dc.subject.lemacNanotecnologia
dc.subject.lemacFotocatàlisi
dc.subject.lemacHidrogen
dc.contributor.groupUniversitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia
dc.identifier.doi10.1016/j.apcatb.2019.02.053
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0926337319301614
dc.rights.accessOpen Access
local.identifier.drac23965951
dc.description.versionPostprint (author's final draft)
local.citation.authorMartínez, L.; Soler, L.; Angurell, I.; Llorca, J.
local.citation.publicationNameApplied catalysis B. Environmental
local.citation.volume248
local.citation.numberJuly
local.citation.startingPage504
local.citation.endingPage514


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Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain