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dc.contributor.author
Giovanetti, Lisandro Jose
dc.contributor.author
Ramallo Lopez, Jose Martin
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Foxe, Michael
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Jones, Louis C.
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Koebel, Matthias M.
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Somorjai, Gabor A.
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Craievich, Aldo F.
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Salmeron, Miquel B.
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Requejo, Felix Gregorio
dc.date.available
2016-04-15T15:54:40Z
dc.date.issued
2012-01
dc.identifier.citation
Giovanetti, Lisandro Jose; Ramallo Lopez, Jose Martin; Foxe, Michael ; Jones, Louis C.; Koebel, Matthias M. ; et al.; Shape Changes of Pt Nanoparticles Induced by Deposition on Mesoporous Silica; Wiley; Small; 8; 3; 1-2012; 468-473
dc.identifier.issn
1613-6810
dc.identifier.uri
http://hdl.handle.net/11336/5226
dc.description.abstract
Polyvinylpyrollidone (PVP)-capped platinum nanoparticles (NPs) are found to change shape from spherical to flat when deposited on mesoporous silica substrates (SBA-15). Transmission electron microscopy (TEM), small-angle X-ray scattering (SAXS), and extended X-ray absorption fine structure (EXAFS) analyses are used in these studies. The SAXS results indicate that, after deposition, the 2 nm NPs have an average gyration radius 22% larger than in solution, while the EXAFS measurements indicate a decrease in first neighbor co-ordination number from 9.3 to 7.4. The deformation of these small capped NPs is attributed to interactions with the surface of the SBA-15 support, as evidenced by X-ray absorption near-edge structure (XANES).
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Nanoparticles
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Xafs
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Saxs
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Nanothermodynamics
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Nano-materiales
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Nanotecnología
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Shape Changes of Pt Nanoparticles Induced by Deposition on Mesoporous Silica
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-05-06 15:52:43.262787-03
dc.journal.volume
8
dc.journal.number
3
dc.journal.pagination
468-473
dc.journal.pais
Alemania
dc.journal.ciudad
Weinheim
dc.description.fil
Fil: Giovanetti, Lisandro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
dc.description.fil
Fil: Ramallo Lopez, Jose Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
dc.description.fil
Fil: Foxe, Michael . Lawrence Berkeley National Laboratory; Estados Unidos
dc.description.fil
Fil: Jones, Louis C.. Lawrence Berkeley National Laboratory; Estados Unidos
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Fil: Koebel, Matthias M. . Swiss Federal Laboratories for Materials Science and Technology; Suiza
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Fil: Somorjai, Gabor A. . Lawrence Berkeley National Laboratory; Estados Unidos
dc.description.fil
Fil: Craievich, Aldo F. . University of Sao Paulo.Institute of Physics; Brasil
dc.description.fil
Fil: Salmeron, Miquel B. . Lawrence Berkeley National Laboratory; Estados Unidos
dc.description.fil
Fil: Requejo, Felix Gregorio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
dc.journal.title
Small
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/pmid/22213635
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/wol1/doi/10.1002/smll.201101293/abstract
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info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/smll.201101293
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1002/smll.201101293
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