Three-dimensionally ordered hierarchically porous tin dioxide inverse opals and immobilization of palladium nanoparticles for catalytic applications

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dc.contributor.authorCollins, Gillian
dc.contributor.authorBlömker, Martin
dc.contributor.authorOsiak, Michal J.
dc.contributor.authorHolmes, Justin D.
dc.contributor.authorBredol, Michael
dc.contributor.authorO'Dwyer, Colm
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderUniversity College Corken
dc.contributor.funderIrish Research Councilen
dc.contributor.funderHigher Education Authorityen
dc.date.accessioned2018-05-21T11:11:02Z
dc.date.available2018-05-21T11:11:02Z
dc.date.issued2013-10-09
dc.date.updated2018-05-15T23:46:52Z
dc.description.abstractA high surface area 3D ordered SnO2 inverted opal with walls composed of interconnected nanocrystals is reported using a facile approach with tin acetate precursors. The hierarchically porous structure exhibits porosity on multiple lengths scales (cm down to nm). The thickness of the IO wall structure comprising nanocrystals of the oxide can be tuned by multiple infilling of the precursor. Using highly monodisperse Pd nanoparticles, we show how the SnO2 IO can be functionalized with immobilized Pd NP assemblies. We show that the Pd NP size dispersion is controlled by utilizing weak ligand–metal interactions and strong metal-oxide interactions for the immobilization step. The resulting SnO2–Pd IOs were investigated X-ray photoelectron spectroscopy indicating electronic interactions between the Pd and SnO2 and alterations to NP surface chemistry. Pd NPs assembled with excellent dispersion on the ordered SnO2 IOs show superior catalytic performance for liquid phase chemical synthesis via Suzuki coupling reactions and allow easy removal of the catalyst substrate post reaction. Higher mass electrocatalytic activity is also demonstrated for formic acid oxidation, compared to commercial Pd/C catalysts, which is shown to be due to better access to the catalytically active sites on SnO2–Pd IOs. The high surface area interconnected phase-pure SnO2 IO, with programmable porosity forms a functional material for catalytic applications.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationCollins, G., Blömker, M., Osiak, M., Holmes, J. D., Bredol, M. and O’Dwyer, C. (2013) 'Three-Dimensionally Ordered Hierarchically Porous Tin Dioxide Inverse Opals and Immobilization of Palladium Nanoparticles for Catalytic Applications', Chemistry of Materials, 25(21), pp. 4312-4320. doi: 10.1021/cm402458ven
dc.identifier.doi10.1021/cm402458v
dc.identifier.endpage4320en
dc.identifier.issn0897-4756
dc.identifier.issued21en
dc.identifier.journaltitleChemistry of Materialsen
dc.identifier.startpage4312en
dc.identifier.urihttps://hdl.handle.net/10468/6154
dc.identifier.volume25en
dc.language.isoenen
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Short Term Travel Fellowship (STTF)/07/SK/B1232a - STTF 11/IE/Optical Probing of Phase Changes in Inverse opal Photonic Crystal Li-on Battery Electrodes/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Stokes Professorship & Lectureship Programme/07/SK/B1232a/IE/Colm ODwyer/en
dc.relation.projectUniveristy College Cork (UCC Strategic Research Fund); Irish Research Council (IRC New Foundations Award 2012; Award No. RS/2010/2170); Higher Education Authority (Higher Education Authority Program for Research in Third Level Institutions (2007-2011) via the INSPIRE programme)en
dc.relation.urihttps://pubs.acs.org/doi/10.1021/cm402458v
dc.rights© 2013 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Chemistry of Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/cm402458ven
dc.subjectCatalysisen
dc.subjectPalladiumen
dc.subjectNanoparticlesen
dc.subjectTin dioxide inverse opalsen
dc.titleThree-dimensionally ordered hierarchically porous tin dioxide inverse opals and immobilization of palladium nanoparticles for catalytic applicationsen
dc.typeArticle (peer-reviewed)en
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