Interaction of NO with Au nanoparticles supported on (100) terraces and topological defects of MgO
- Autores
- Fuente, Silvia Andrea; Ferullo, Ricardo; Domancich, Nicolás Fernando; Castellani, Norberto Jorge
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The adsorption of nitric oxide (NO) on Aun (n = 1-3) particles deposited on anionic (O2-) sites of MgO has been studied using the DFT (Density Functional Theory) approach. The regular O2- sites of MgO(100) and the sites in edge and corner topological defects with high symmetry of MgO were considered. The adhesion energy of Aun to MgO is larger for Au2 and Au3 due to higher polarization effects. On the other hand, the interaction strength of NO with supported Aun particles depends mainly on the electronic configuration (open or closed shell) of the particle; the Au particles with odd number of atoms show larger NO binding energies. A comparison was performed with the reactivity of free Au n particles. From this, it is possible to conclude that the support enhances the NO-Aun bonding strength for the monomer, weakens this interaction in the case of the dimer, and does not have an effect in the trimers. Besides, the NO-Aun bonding is essentially insensitive to the coordination of the anionic site where the Aun particle is linked. A large red-shift of the N-O stretching frequency was obtained, particularly for the Au particles with odd number of atoms, due to a negative charge transfer from Au to NO. © 2010 Elsevier B.V. All rights reserved.
Fil: Fuente, Silvia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Ferullo, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Domancich, Nicolás Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Castellani, Norberto Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina - Materia
-
Au/Mgo
Cluster Model
Dft
Model Catalysts
Nitric Oxide
No Adsorption - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/64076
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Interaction of NO with Au nanoparticles supported on (100) terraces and topological defects of MgOFuente, Silvia AndreaFerullo, RicardoDomancich, Nicolás FernandoCastellani, Norberto JorgeAu/MgoCluster ModelDftModel CatalystsNitric OxideNo Adsorptionhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The adsorption of nitric oxide (NO) on Aun (n = 1-3) particles deposited on anionic (O2-) sites of MgO has been studied using the DFT (Density Functional Theory) approach. The regular O2- sites of MgO(100) and the sites in edge and corner topological defects with high symmetry of MgO were considered. The adhesion energy of Aun to MgO is larger for Au2 and Au3 due to higher polarization effects. On the other hand, the interaction strength of NO with supported Aun particles depends mainly on the electronic configuration (open or closed shell) of the particle; the Au particles with odd number of atoms show larger NO binding energies. A comparison was performed with the reactivity of free Au n particles. From this, it is possible to conclude that the support enhances the NO-Aun bonding strength for the monomer, weakens this interaction in the case of the dimer, and does not have an effect in the trimers. Besides, the NO-Aun bonding is essentially insensitive to the coordination of the anionic site where the Aun particle is linked. A large red-shift of the N-O stretching frequency was obtained, particularly for the Au particles with odd number of atoms, due to a negative charge transfer from Au to NO. © 2010 Elsevier B.V. All rights reserved.Fil: Fuente, Silvia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Ferullo, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Domancich, Nicolás Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaFil: Castellani, Norberto Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaElsevier Science2011-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/64076Fuente, Silvia Andrea; Ferullo, Ricardo; Domancich, Nicolás Fernando; Castellani, Norberto Jorge; Interaction of NO with Au nanoparticles supported on (100) terraces and topological defects of MgO; Elsevier Science; Surface Science; 605; 1-2; 1-2011; 81-880039-6028CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.susc.2010.10.003info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0039602810004000info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:25:21Zoai:ri.conicet.gov.ar:11336/64076instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:25:21.811CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Interaction of NO with Au nanoparticles supported on (100) terraces and topological defects of MgO |
title |
Interaction of NO with Au nanoparticles supported on (100) terraces and topological defects of MgO |
spellingShingle |
Interaction of NO with Au nanoparticles supported on (100) terraces and topological defects of MgO Fuente, Silvia Andrea Au/Mgo Cluster Model Dft Model Catalysts Nitric Oxide No Adsorption |
title_short |
Interaction of NO with Au nanoparticles supported on (100) terraces and topological defects of MgO |
title_full |
Interaction of NO with Au nanoparticles supported on (100) terraces and topological defects of MgO |
title_fullStr |
Interaction of NO with Au nanoparticles supported on (100) terraces and topological defects of MgO |
title_full_unstemmed |
Interaction of NO with Au nanoparticles supported on (100) terraces and topological defects of MgO |
title_sort |
Interaction of NO with Au nanoparticles supported on (100) terraces and topological defects of MgO |
dc.creator.none.fl_str_mv |
Fuente, Silvia Andrea Ferullo, Ricardo Domancich, Nicolás Fernando Castellani, Norberto Jorge |
author |
Fuente, Silvia Andrea |
author_facet |
Fuente, Silvia Andrea Ferullo, Ricardo Domancich, Nicolás Fernando Castellani, Norberto Jorge |
author_role |
author |
author2 |
Ferullo, Ricardo Domancich, Nicolás Fernando Castellani, Norberto Jorge |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Au/Mgo Cluster Model Dft Model Catalysts Nitric Oxide No Adsorption |
topic |
Au/Mgo Cluster Model Dft Model Catalysts Nitric Oxide No Adsorption |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The adsorption of nitric oxide (NO) on Aun (n = 1-3) particles deposited on anionic (O2-) sites of MgO has been studied using the DFT (Density Functional Theory) approach. The regular O2- sites of MgO(100) and the sites in edge and corner topological defects with high symmetry of MgO were considered. The adhesion energy of Aun to MgO is larger for Au2 and Au3 due to higher polarization effects. On the other hand, the interaction strength of NO with supported Aun particles depends mainly on the electronic configuration (open or closed shell) of the particle; the Au particles with odd number of atoms show larger NO binding energies. A comparison was performed with the reactivity of free Au n particles. From this, it is possible to conclude that the support enhances the NO-Aun bonding strength for the monomer, weakens this interaction in the case of the dimer, and does not have an effect in the trimers. Besides, the NO-Aun bonding is essentially insensitive to the coordination of the anionic site where the Aun particle is linked. A large red-shift of the N-O stretching frequency was obtained, particularly for the Au particles with odd number of atoms, due to a negative charge transfer from Au to NO. © 2010 Elsevier B.V. All rights reserved. Fil: Fuente, Silvia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina Fil: Ferullo, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina Fil: Domancich, Nicolás Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina Fil: Castellani, Norberto Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina |
description |
The adsorption of nitric oxide (NO) on Aun (n = 1-3) particles deposited on anionic (O2-) sites of MgO has been studied using the DFT (Density Functional Theory) approach. The regular O2- sites of MgO(100) and the sites in edge and corner topological defects with high symmetry of MgO were considered. The adhesion energy of Aun to MgO is larger for Au2 and Au3 due to higher polarization effects. On the other hand, the interaction strength of NO with supported Aun particles depends mainly on the electronic configuration (open or closed shell) of the particle; the Au particles with odd number of atoms show larger NO binding energies. A comparison was performed with the reactivity of free Au n particles. From this, it is possible to conclude that the support enhances the NO-Aun bonding strength for the monomer, weakens this interaction in the case of the dimer, and does not have an effect in the trimers. Besides, the NO-Aun bonding is essentially insensitive to the coordination of the anionic site where the Aun particle is linked. A large red-shift of the N-O stretching frequency was obtained, particularly for the Au particles with odd number of atoms, due to a negative charge transfer from Au to NO. © 2010 Elsevier B.V. All rights reserved. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/64076 Fuente, Silvia Andrea; Ferullo, Ricardo; Domancich, Nicolás Fernando; Castellani, Norberto Jorge; Interaction of NO with Au nanoparticles supported on (100) terraces and topological defects of MgO; Elsevier Science; Surface Science; 605; 1-2; 1-2011; 81-88 0039-6028 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/64076 |
identifier_str_mv |
Fuente, Silvia Andrea; Ferullo, Ricardo; Domancich, Nicolás Fernando; Castellani, Norberto Jorge; Interaction of NO with Au nanoparticles supported on (100) terraces and topological defects of MgO; Elsevier Science; Surface Science; 605; 1-2; 1-2011; 81-88 0039-6028 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.susc.2010.10.003 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0039602810004000 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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application/pdf application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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