Overcoming Pd–TiO2 deactivation during H2 production from photoreforming using Cu@Pd nanoparticles supported on TiO2

dc.check.date2022-03-01
dc.check.infoAccess to this article is restricted until 12 months after publication by request of the publisher.en
dc.contributor.authorPlatero, F.
dc.contributor.authorLópez-Martín, A.
dc.contributor.authorCaballero, A.
dc.contributor.authorRojas, T. C.
dc.contributor.authorNolan, Michael
dc.contributor.authorColón, G.
dc.contributor.funderMinisterio de Ciencia e Innovaciónen
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderHorizon 2020en
dc.date.accessioned2021-04-28T11:30:17Z
dc.date.available2021-04-28T11:30:17Z
dc.date.issued2021-03-01
dc.date.updated2021-04-28T11:15:40Z
dc.description.abstractDifferent Cu@Pd-TiO2 systems have been prepared by a two-step synthesis to obtain a bimetallic co-catalyst for the H2 photoreforming reaction. We find that the tailored deposition of Pd covering the Cu nanoclusters by a galvanic replacement process results in the formation of a core@shell structure. The photocatalytic H2 production after 18 h is 350 mmol/g on the Cu@Pd1.0-TiO2 bimetallic system, which is higher than that on the monometallic ones with a H2 production of 250 mmol/g on Pd-supported TiO2. Surface characterization by high-angle annular dark-field scanning transmission electron microscopy, H2-temperature-programed reduction, CO-FTIR spectroscopy, and XPS gives clear evidence of the formation of a core@shell structure. With a Pd loading of 0.2-0.3 at. %, we propose a full coverage of the Cu nanoparticles with Pd. Long-time photoreforming runs show the enhanced performance of supported Cu@Pd with respect to bare palladium leading to a more stable catalyst and ultimately higher H2 production.en
dc.description.sponsorshipMinisterio de Ciencia e Innovación (PCIN-2017-056 project from M-ERA.Net programme through Acciones Programación Conjunta); Science Foundation Ireland (SFI 17/MERA/3418)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationPlatero, F., López-Martín, A., Caballero, A., Rojas, T. C., Nolan, M. and Colón, G. (2021) 'Overcoming Pd–TiO2 deactivation during H2 production from photoreforming using Cu@Pd nanoparticles supported on TiO2', ACS Applied Nano Materials, 4(3), pp. 3204-3219. doi: 10.1021/acsanm.1c00345en
dc.identifier.doi10.1021/acsanm.1c00345en
dc.identifier.eissn2574-0970
dc.identifier.endpage3219en
dc.identifier.issued3en
dc.identifier.journaltitleACS Applied Nano Materialsen
dc.identifier.startpage3204en
dc.identifier.urihttps://hdl.handle.net/10468/11230
dc.identifier.volume4en
dc.language.isoenen
dc.publisherACS Publicationsen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::ERA-NET-Cofund/685451/EU/ERA-NET for materials research and innovation/M-ERA.NET 2en
dc.rights© 2021, American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Nano Materials, after technical editing by the publisher. To access the final edited and published work see: https://doi.org/10.1021/acsanm.1c00345en
dc.subjectCopperen
dc.subjectCore-shellen
dc.subjectDFTen
dc.subjectH photoreforming 2en
dc.subjectPalladiumen
dc.subjectTiO 2en
dc.titleOvercoming Pd–TiO2 deactivation during H2 production from photoreforming using Cu@Pd nanoparticles supported on TiO2en
dc.typeArticle (peer-reviewed)en
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