Reactivity and Morphology of Oxygen-Modified Au Surfaces

Autores
Baber, Ashleigh E.; Torres, Daniel; Müller, Kathrin; Nazzarro, Marcelo Sandro; Liu, Ping; Starr, David E.; Stacchiola, Dario Jose
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Inducing the adsorption of oxygen on gold surfaces transforms the inert metal into a surprisingly reactive material, which acts as a highly selective, low-temperature catalyst. The strong interaction of atomic oxygen with Au greatly affects the surface morphology by increasing the number of undercoordinated Au atoms and lifting the surface reconstruction. Through the combination of experimental and theoretical techniques, we have fully characterized an oxygen-modified Au(100) surface and determined the structure–reactivity relationship of O–Au species. Bulk-implanted oxygen does not affect the reactivity of Au surfaces and subsurface oxygen is found to be unstable. Oxygen stabilizes undercoordinated Au atoms on the surface and becomes highly active for oxidation reactions when adsorbed on unreconstructed Au(100) sites.
Fil: Baber, Ashleigh E.. Brookhaven National Laboratory; Estados Unidos
Fil: Torres, Daniel. Brookhaven National Laboratory; Estados Unidos
Fil: Müller, Kathrin. Brookhaven National Laboratory; Estados Unidos. University of Groningen; Países Bajos
Fil: Nazzarro, Marcelo Sandro. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Fisica. Laboratorio de Ciencias de Superficies y Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
Fil: Liu, Ping. Brookhaven National Laboratory; Estados Unidos
Fil: Starr, David E.. Brookhaven National Laboratory; Estados Unidos
Fil: Stacchiola, Dario Jose. Brookhaven National Laboratory; Estados Unidos
Materia
ADSORPTION
Au(100)
SURFACE
OXYGEN
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/104439
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Reactivity and Morphology of Oxygen-Modified Au SurfacesBaber, Ashleigh E.Torres, DanielMüller, KathrinNazzarro, Marcelo SandroLiu, PingStarr, David E.Stacchiola, Dario JoseADSORPTIONAu(100)SURFACEOXYGENhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1https://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2Inducing the adsorption of oxygen on gold surfaces transforms the inert metal into a surprisingly reactive material, which acts as a highly selective, low-temperature catalyst. The strong interaction of atomic oxygen with Au greatly affects the surface morphology by increasing the number of undercoordinated Au atoms and lifting the surface reconstruction. Through the combination of experimental and theoretical techniques, we have fully characterized an oxygen-modified Au(100) surface and determined the structure–reactivity relationship of O–Au species. Bulk-implanted oxygen does not affect the reactivity of Au surfaces and subsurface oxygen is found to be unstable. Oxygen stabilizes undercoordinated Au atoms on the surface and becomes highly active for oxidation reactions when adsorbed on unreconstructed Au(100) sites.Fil: Baber, Ashleigh E.. Brookhaven National Laboratory; Estados UnidosFil: Torres, Daniel. Brookhaven National Laboratory; Estados UnidosFil: Müller, Kathrin. Brookhaven National Laboratory; Estados Unidos. University of Groningen; Países BajosFil: Nazzarro, Marcelo Sandro. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Fisica. Laboratorio de Ciencias de Superficies y Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; ArgentinaFil: Liu, Ping. Brookhaven National Laboratory; Estados UnidosFil: Starr, David E.. Brookhaven National Laboratory; Estados UnidosFil: Stacchiola, Dario Jose. Brookhaven National Laboratory; Estados UnidosAmerican Chemical Society2012-08-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/104439Baber, Ashleigh E.; Torres, Daniel; Müller, Kathrin; Nazzarro, Marcelo Sandro; Liu, Ping; et al.; Reactivity and Morphology of Oxygen-Modified Au Surfaces; American Chemical Society; Journal of Physical Chemistry C; 116; 34; 7-8-2012; 18292-182991932-74471932-7455CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jp3056653info:eu-repo/semantics/altIdentifier/doi/10.1021/jp3056653info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:54:59Zoai:ri.conicet.gov.ar:11336/104439instacron: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:34982025-09-03 09:54:59.574CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Reactivity and Morphology of Oxygen-Modified Au Surfaces
title Reactivity and Morphology of Oxygen-Modified Au Surfaces
spellingShingle Reactivity and Morphology of Oxygen-Modified Au Surfaces
Baber, Ashleigh E.
ADSORPTION
Au(100)
SURFACE
OXYGEN
title_short Reactivity and Morphology of Oxygen-Modified Au Surfaces
title_full Reactivity and Morphology of Oxygen-Modified Au Surfaces
title_fullStr Reactivity and Morphology of Oxygen-Modified Au Surfaces
title_full_unstemmed Reactivity and Morphology of Oxygen-Modified Au Surfaces
title_sort Reactivity and Morphology of Oxygen-Modified Au Surfaces
dc.creator.none.fl_str_mv Baber, Ashleigh E.
Torres, Daniel
Müller, Kathrin
Nazzarro, Marcelo Sandro
Liu, Ping
Starr, David E.
Stacchiola, Dario Jose
author Baber, Ashleigh E.
author_facet Baber, Ashleigh E.
Torres, Daniel
Müller, Kathrin
Nazzarro, Marcelo Sandro
Liu, Ping
Starr, David E.
Stacchiola, Dario Jose
author_role author
author2 Torres, Daniel
Müller, Kathrin
Nazzarro, Marcelo Sandro
Liu, Ping
Starr, David E.
Stacchiola, Dario Jose
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv ADSORPTION
Au(100)
SURFACE
OXYGEN
topic ADSORPTION
Au(100)
SURFACE
OXYGEN
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Inducing the adsorption of oxygen on gold surfaces transforms the inert metal into a surprisingly reactive material, which acts as a highly selective, low-temperature catalyst. The strong interaction of atomic oxygen with Au greatly affects the surface morphology by increasing the number of undercoordinated Au atoms and lifting the surface reconstruction. Through the combination of experimental and theoretical techniques, we have fully characterized an oxygen-modified Au(100) surface and determined the structure–reactivity relationship of O–Au species. Bulk-implanted oxygen does not affect the reactivity of Au surfaces and subsurface oxygen is found to be unstable. Oxygen stabilizes undercoordinated Au atoms on the surface and becomes highly active for oxidation reactions when adsorbed on unreconstructed Au(100) sites.
Fil: Baber, Ashleigh E.. Brookhaven National Laboratory; Estados Unidos
Fil: Torres, Daniel. Brookhaven National Laboratory; Estados Unidos
Fil: Müller, Kathrin. Brookhaven National Laboratory; Estados Unidos. University of Groningen; Países Bajos
Fil: Nazzarro, Marcelo Sandro. Universidad Nacional de San Luis. Facultad de Ciencias Fisico Matematicas y Naturales. Departamento de Fisica. Laboratorio de Ciencias de Superficies y Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
Fil: Liu, Ping. Brookhaven National Laboratory; Estados Unidos
Fil: Starr, David E.. Brookhaven National Laboratory; Estados Unidos
Fil: Stacchiola, Dario Jose. Brookhaven National Laboratory; Estados Unidos
description Inducing the adsorption of oxygen on gold surfaces transforms the inert metal into a surprisingly reactive material, which acts as a highly selective, low-temperature catalyst. The strong interaction of atomic oxygen with Au greatly affects the surface morphology by increasing the number of undercoordinated Au atoms and lifting the surface reconstruction. Through the combination of experimental and theoretical techniques, we have fully characterized an oxygen-modified Au(100) surface and determined the structure–reactivity relationship of O–Au species. Bulk-implanted oxygen does not affect the reactivity of Au surfaces and subsurface oxygen is found to be unstable. Oxygen stabilizes undercoordinated Au atoms on the surface and becomes highly active for oxidation reactions when adsorbed on unreconstructed Au(100) sites.
publishDate 2012
dc.date.none.fl_str_mv 2012-08-07
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/11336/104439
Baber, Ashleigh E.; Torres, Daniel; Müller, Kathrin; Nazzarro, Marcelo Sandro; Liu, Ping; et al.; Reactivity and Morphology of Oxygen-Modified Au Surfaces; American Chemical Society; Journal of Physical Chemistry C; 116; 34; 7-8-2012; 18292-18299
1932-7447
1932-7455
CONICET Digital
CONICET
url http://hdl.handle.net/11336/104439
identifier_str_mv Baber, Ashleigh E.; Torres, Daniel; Müller, Kathrin; Nazzarro, Marcelo Sandro; Liu, Ping; et al.; Reactivity and Morphology of Oxygen-Modified Au Surfaces; American Chemical Society; Journal of Physical Chemistry C; 116; 34; 7-8-2012; 18292-18299
1932-7447
1932-7455
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jp3056653
info:eu-repo/semantics/altIdentifier/doi/10.1021/jp3056653
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/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269315779264512
score 13.13397

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