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dc.contributor.authorBonmatí i Lladó, Eduard
dc.contributor.authorCasanovas Grau, Albert
dc.contributor.authorAngurell Purroy, Inmaculada
dc.contributor.authorLlorca Piqué, Jordi
dc.contributor.otherUniversitat Politècnica de Catalunya. Institut de Tècniques Energètiques
dc.date.accessioned2015-10-20T11:04:32Z
dc.date.available2016-02-29T01:30:47Z
dc.date.created2015-03-01
dc.date.issued2015-03-01
dc.identifier.citationBonmatí, E., Casanovas, A., Angurell, I., Llorca, J. Hydrogen photoproduction from ethanol-water mixtures over Au-Cu alloy nanoparticles supported on TiO2. "Topics in catalysis", 01 Març 2015, vol. 58, núm. 2-3, p. 77-84.
dc.identifier.issn1022-5528
dc.identifier.urihttp://hdl.handle.net/2117/77954
dc.description.abstractAu/TiO2, Au0.75Cu0.25/TiO2, Au0.5Cu0.5/TiO2 and Au0.25Cu0.75/TiO2 photocatalysts prepared from pre-formed Au and Au-Cu alloy nanoparticles of controlled composition and size were loaded over ceramic honeycombs (2 mg cm(-2)) and tested in an optical fiber photoreactor illuminated with UV LEDs (2.6 mW cm(-2)) to continuously produce hydrogen from water and ethanol mixtures in gas phase at W/F = 4 g min L-1 and 298 K (where W is the weight of the catalyst and F is the flow rate). The photocatalytic honeycombs were characterized by high resolution transmission electron microscopy, high-angle annular dark-field imaging, energy dispersive X-ray, X-ray photoelectron spectroscopy, and UV-Vis spectroscopy. The yield of hydrogen generation was Au0.75Cu0.25/TiO2 > Au0.5Cu0.5/TiO2 similar to Au/TiO2 > Au0.25Cu0.75/TiO2 >> bare TiO2, thus demonstrating that the addition of small quantities of copper to conventional TiO2-supported gold photocatalysts promotes the photocatalyic activity, likely by providing effective charge transfer between Au and Cu in the alloy nanoparticles.
dc.format.extent8 p.
dc.language.isoeng
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::Física::Física de l'estat sòlid
dc.subject.lcshHydrogen
dc.subject.lcshNanocomposites (Materials)
dc.subject.otherPhotocatalysis
dc.subject.otherHydrogen
dc.subject.otherEthanol
dc.subject.otherGold
dc.subject.otherCopper
dc.titleHydrogen photoproduction from ethanol-water mixtures over Au-Cu alloy nanoparticles supported on TiO2
dc.typeArticle
dc.subject.lemacHidrogen
dc.subject.lemacNanocompostos (Materials)
dc.contributor.groupUniversitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia
dc.identifier.doi10.1007/s11244-014-0347-8
dc.rights.accessOpen Access
drac.iddocument15578326
dc.description.versionPostprint (published version)
upcommons.citation.authorBonmatí, E.; Casanovas, A.; Angurell, I.; Llorca, J.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameTopics in catalysis
upcommons.citation.volume58
upcommons.citation.number2-3
upcommons.citation.startingPage77
upcommons.citation.endingPage84


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