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Formation of Ag Nanoparticles on β‑Ag2WO4 through Electron Beam Irradiation: A Synergetic Computational and Experimental Study
dc.contributor.author | Alvarez Roca, Roman | |
dc.contributor.author | Gouveia, Amanda | |
dc.contributor.author | Lemos, Pablo S. | |
dc.contributor.author | Gracia, Lourdes | |
dc.contributor.author | Andres, Juan | |
dc.contributor.author | Longo, Elson | |
dc.date.accessioned | 2016-11-04T15:15:21Z | |
dc.date.available | 2016-11-04T15:15:21Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | ROCA, Roman A., et al. Formation of Ag Nanoparticles on β-Ag2WO4 through Electron Beam Irradiation: A Synergetic Computational and Experimental Study. Inorganic Chemistry, 2016, vol. 55, no 17, p. 8661-8671. | ca_CA |
dc.identifier.issn | 0020-1669 | |
dc.identifier.issn | 1520-510X | |
dc.identifier.uri | http://hdl.handle.net/10234/164026 | |
dc.description.abstract | In the present work, a combined theoretical and experimental study was performed on the structure, optical properties, and growth of Ag nanoparticles in metastable β- Ag2WO4 microcrystals. This material was synthesized using the precipitation method without the presence of surfactants. The structural behavior was analyzed using X-ray diffraction and Raman and infrared spectroscopy. Field-emission scanning electron microscopy revealed the presence of irregular spherical-like Ag nanoparticles on the β-Ag2WO4 microcrystals, which were induced by electron beam irradiation under high vacuum conditions. A detailed analysis of the optimized β-Ag2WO4 geometry and theoretical results enabled interpretation of both the Raman and infrared spectra and provided deeper insight into rationalizing the observed morphology. In addition, first-principles calculations, within the quantum theory of atoms in molecules framework, provided an in-depth understanding of the nucleation and early evolution of Ag nanoparticles. The Ag nucleation and formation is the result of structural and electronic changes of the [AgO6] and [AgO5] clusters as a constituent building block of β-Ag2WO4, which is consistent with Ag metallic formation | ca_CA |
dc.description.sponsorShip | This work was financially supported by the following Spanish and Brazilian research funding institutions: PrometeoII/2014/ 022 and ACOMP/2014/270 projects (Generalitat-Valenciana), Ministerio de Economia y Competitividad (CTQ2012-36253- C03-02), Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP 2012/14004-5, 2013/07296-2 and 2013/ 26671-9), Conselho Nacional de Desenvolvimento Cientifí co e Tecnológico (CNPq; 479644/2012-8, 350711/2012-7, 304531/2013-8 and 151136/2013-0), Coordenação de Aperfeico̧ amento de Pessoal de Niv́ el Superior, and Programa de Cooperación Cientifíca con Iberoamerica (Brasil) of Ministerio de Educación (PHBP14-00020). J.A. acknowledges to Ministerio de Economia y Competitividad, “Salvador Madariaga” program, PRX15/00261. L.G. acknowledges Banco Santander (Becas Iberoamérica: Jóvenes profesores e investigadores). | ca_CA |
dc.format.extent | 11 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | American Chemical Society | ca_CA |
dc.relation.isPartOf | Inorganic Chemistry, 2016, vol. 55, núm. 17 | ca_CA |
dc.rights | Copyright © 2016 American Chemical Society | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | Facile hydrothermal synthesis | ca_CA |
dc.subject | Silver tungstate | ca_CA |
dc.subject | Visible-light | ca_CA |
dc.subject | Photocatalytic activity | ca_CA |
dc.subject | Metal nanoparticles | ca_CA |
dc.title | Formation of Ag Nanoparticles on β‑Ag2WO4 through Electron Beam Irradiation: A Synergetic Computational and Experimental Study | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1021/acs.inorgchem.6b01215 | |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_CA |
dc.relation.publisherVersion | http://bs8lz6ys5q.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Formation+of+Ag+Nanoparticles+on+beta-Ag2WO4+through+Electron+Beam+Irradiation%3A+A+Synergetic+Computational+and+Experimental+Study&rft.jtitle=INORGANIC+CHEMISTRY&rft.au=Roca%2C+RA&rft.au=Gouveia%2C+AF&rft.au=Lemos%2C+PS&rft.au=Gracia%2C+L&rft.date=2016-09-05&rft.pub=AMER+CHEMICAL+SOC&rft.issn=0020-1669&rft.eissn=1520-510X&rft.volume=55&rft.issue=17&rft.spage=8661&rft.epage=8671&rft_id=info:doi/10.1021%2Facs.inorgchem.6b01215&rft.externalDBID=n%2Fa&rft.externalDocID=000382713900050¶mdict=es-ES | ca_CA |
dc.type.version | info:eu-repo/semantics/publishedVersion | ca_CA |
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