Marrying SPR excitation and metal–support interactions

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dc.contributor.authorGEONMONOND, RAFAEL S.
dc.contributor.authorQUIROZ, JHON
dc.contributor.authorROCHA, GUILHERME F.S.R.
dc.contributor.authorOROPEZA, FREDDY E.
dc.contributor.authorRANGEL, CLARA J.
dc.contributor.authorRODRIGUES, THENNER S.
dc.contributor.authorHOFMANN, JAN P.
dc.contributor.authorHENSEN, EMIEL J.M.
dc.contributor.authorANDO, ROMULO A.
dc.contributor.authorCAMARGO, PEDRO H.C.
dc.coverageInternacionalpt_BR
dc.date.accessioned2018-08-17T13:01:14Z
dc.date.available2018-08-17T13:01:14Z
dc.date.issued2018pt_BR
dc.description.abstractPlasmonic catalysis takes advantage of the surface plasmon resonance (SPR) excitation to drive or accelerate chemical transformations. In addition to the plasmonic component, the control over metal–support interactions in these catalysts is expected to strongly influence the performances. For example, CeO2 has been widely employed towards oxidation reactions due to its oxygen mobility and storage properties, which allow for the formation of Ce3+ sites and adsorbed oxygen species from metal–support interactions. It is anticipated that these species may be activated by the SPR excitation and contribute to the catalytic activity of the material. Thus, a clear understanding of the role played by the SPR-mediated activation of surface oxide species at the metal–support interface is needed in order to take advantage of this phenomenon. Herein, we describe and quantify the contribution from active surface oxide species at the metal–support interface (relative to O2 from air) to the activities in green SPR-mediated oxidation reactions. We employed CeO2 decorated with Au NPs (Au/CeO2) as a model plasmonic catalyst and the oxidation of p-aminothiophenol (PATP) and aniline as proof-of-concept transformations. We compared the results with SiO2 decorated with Au NPs (Au/SiO2), in which the formation of surface oxide species at the metal–support interface is not expected. We found that the SPR-mediated activation of surface oxide species at the metal–support interface in Au/CeO2 played a pivotal role in the detected activities, being even higher than the contribution coming from the activation of O2 from air.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipIDFAPESP: 15/21366-9; 15/26308-7; 16/17866-9pt_BR
dc.format.extent8560-8568pt_BR
dc.identifier.citationGEONMONOND, RAFAEL S.; QUIROZ, JHON; ROCHA, GUILHERME F.S.R.; OROPEZA, FREDDY E.; RANGEL, CLARA J.; RODRIGUES, THENNER S.; HOFMANN, JAN P.; HENSEN, EMIEL J.M.; ANDO, ROMULO A.; CAMARGO, PEDRO H.C. Marrying SPR excitation and metal–support interactions: unravelling the contribution of active surface species in plasmonic catalysis. <b>Nanoscale</b>, v. 10, n. 18, p. 8560-8568, 2018. DOI: <a href="https://dx.doi.org/10.1039/c8nr00934a">10.1039/c8nr00934a</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/29069.
dc.identifier.doi10.1039/c8nr00934apt_BR
dc.identifier.fasciculo18pt_BR
dc.identifier.issn2040-3364pt_BR
dc.identifier.percentilfi84.70en
dc.identifier.percentilfiCiteScore93.00
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/29069
dc.identifier.vol10pt_BR
dc.relation.ispartofNanoscalept_BR
dc.rightsclosedAccesspt_BR
dc.subjectcatalysis
dc.subjectcatalysts
dc.subjectplasmons
dc.subjectresonance
dc.subjectsurfaces
dc.subjectoxidation
dc.subjectgold
dc.subjectnanostructures
dc.subjectspheres
dc.titleMarrying SPR excitation and metal–support interactionspt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorTHENNER SILVA RODRIGUES
ipen.codigoautor14641
ipen.contributor.ipenauthorTHENNER SILVA RODRIGUES
ipen.date.recebimento18-08pt_BR
ipen.identifier.fi6.970pt_BR
ipen.identifier.fiCiteScore11.9
ipen.identifier.ipendoc24862pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi6.000 ou mais
ipen.range.percentilfi75.00 - 100.00
ipen.subtitulounravelling the contribution of active surface species in plasmonic catalysispt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication290c6b26-c06a-4802-b418-2360378a859c
relation.isAuthorOfPublication.latestForDiscovery290c6b26-c06a-4802-b418-2360378a859c
sigepi.autor.atividadeRODRIGUES, THENNER S.:14641:610:Npt_BR
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