DXAS study of Pt-Sn supported catalysts during in-situ reduction treatments

Autores
Ramallo Lopez, Jose Martin; Santori, Gerardo Fabian; Casella, Mónica Laura; Siri, Guillermo Jorge; Requejo, Felix Gregorio; Ferretti, Osmar Alberto
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
X-ray absorption spectroscopy (XAS) can probe the local structure of very diluted and dispersed species, as occurs for active ones in catalysts. These studies can be performed even during catalytic reactions, by using in situ spectroscopic cells with realistic and well-defined hydrodynamics. The experimental cell reported here was previously employed in conventional X-ray absorption beamlines [1]. We endeavored to combine the specific characteristic of our cell with those of the DXAS beamline at the LNLS. The aim is to obtain a suitable experimental set up for time solved XAS catalysts characterizations. Although these first experiments do not provide any relevant information from the catalytic point of view due to experimental inconveniences at the beamline, from the instrumentation aspect it represents an attractive methodology for studies in catalysis. In this work we present preliminary EXAFS results obtained for Pt and PtSn catalyst supported on SiO2 at the Pt L3 edge at the DXAS beamline during reduction treatment in H2 flux in function of temperature.
Fil: Ramallo Lopez, Jose Martin. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Santori, Gerardo Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; Argentina
Fil: Casella, Mónica Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; Argentina
Fil: Siri, Guillermo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; Argentina
Fil: Requejo, Felix Gregorio. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ferretti, Osmar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; Argentina
Materia
Catalyst Supports
Spectroscopy
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:11336/66517
Acceder
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network_name_str CONICET Digital (CONICET)
spelling DXAS study of Pt-Sn supported catalysts during in-situ reduction treatmentsRamallo Lopez, Jose MartinSantori, Gerardo FabianCasella, Mónica LauraSiri, Guillermo JorgeRequejo, Felix GregorioFerretti, Osmar AlbertoCatalyst SupportsSpectroscopyhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2X-ray absorption spectroscopy (XAS) can probe the local structure of very diluted and dispersed species, as occurs for active ones in catalysts. These studies can be performed even during catalytic reactions, by using in situ spectroscopic cells with realistic and well-defined hydrodynamics. The experimental cell reported here was previously employed in conventional X-ray absorption beamlines [1]. We endeavored to combine the specific characteristic of our cell with those of the DXAS beamline at the LNLS. The aim is to obtain a suitable experimental set up for time solved XAS catalysts characterizations. Although these first experiments do not provide any relevant information from the catalytic point of view due to experimental inconveniences at the beamline, from the instrumentation aspect it represents an attractive methodology for studies in catalysis. In this work we present preliminary EXAFS results obtained for Pt and PtSn catalyst supported on SiO2 at the Pt L3 edge at the DXAS beamline during reduction treatment in H2 flux in function of temperature.Fil: Ramallo Lopez, Jose Martin. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Santori, Gerardo Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; ArgentinaFil: Casella, Mónica Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; ArgentinaFil: Siri, Guillermo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; ArgentinaFil: Requejo, Felix Gregorio. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ferretti, Osmar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; ArgentinaBrazilian Synchrotron Light Laboratory2005-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/66517Ramallo Lopez, Jose Martin; Santori, Gerardo Fabian; Casella, Mónica Laura; Siri, Guillermo Jorge; Requejo, Felix Gregorio; et al.; DXAS study of Pt-Sn supported catalysts during in-situ reduction treatments; Brazilian Synchrotron Light Laboratory; Activity Report LNLS; 2004; 12-2005; 1-21518-0204CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://inis.iaea.org/search/searchsinglerecord.aspx?recordsFor=SingleRecord&RN=39118310info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:21:38Zoai:ri.conicet.gov.ar:11336/66517instacron: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:34982025-10-15 14:21:38.509CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv DXAS study of Pt-Sn supported catalysts during in-situ reduction treatments
title DXAS study of Pt-Sn supported catalysts during in-situ reduction treatments
spellingShingle DXAS study of Pt-Sn supported catalysts during in-situ reduction treatments
Ramallo Lopez, Jose Martin
Catalyst Supports
Spectroscopy
title_short DXAS study of Pt-Sn supported catalysts during in-situ reduction treatments
title_full DXAS study of Pt-Sn supported catalysts during in-situ reduction treatments
title_fullStr DXAS study of Pt-Sn supported catalysts during in-situ reduction treatments
title_full_unstemmed DXAS study of Pt-Sn supported catalysts during in-situ reduction treatments
title_sort DXAS study of Pt-Sn supported catalysts during in-situ reduction treatments
dc.creator.none.fl_str_mv Ramallo Lopez, Jose Martin
Santori, Gerardo Fabian
Casella, Mónica Laura
Siri, Guillermo Jorge
Requejo, Felix Gregorio
Ferretti, Osmar Alberto
author Ramallo Lopez, Jose Martin
author_facet Ramallo Lopez, Jose Martin
Santori, Gerardo Fabian
Casella, Mónica Laura
Siri, Guillermo Jorge
Requejo, Felix Gregorio
Ferretti, Osmar Alberto
author_role author
author2 Santori, Gerardo Fabian
Casella, Mónica Laura
Siri, Guillermo Jorge
Requejo, Felix Gregorio
Ferretti, Osmar Alberto
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Catalyst Supports
Spectroscopy
topic Catalyst Supports
Spectroscopy
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv X-ray absorption spectroscopy (XAS) can probe the local structure of very diluted and dispersed species, as occurs for active ones in catalysts. These studies can be performed even during catalytic reactions, by using in situ spectroscopic cells with realistic and well-defined hydrodynamics. The experimental cell reported here was previously employed in conventional X-ray absorption beamlines [1]. We endeavored to combine the specific characteristic of our cell with those of the DXAS beamline at the LNLS. The aim is to obtain a suitable experimental set up for time solved XAS catalysts characterizations. Although these first experiments do not provide any relevant information from the catalytic point of view due to experimental inconveniences at the beamline, from the instrumentation aspect it represents an attractive methodology for studies in catalysis. In this work we present preliminary EXAFS results obtained for Pt and PtSn catalyst supported on SiO2 at the Pt L3 edge at the DXAS beamline during reduction treatment in H2 flux in function of temperature.
Fil: Ramallo Lopez, Jose Martin. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Santori, Gerardo Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; Argentina
Fil: Casella, Mónica Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; Argentina
Fil: Siri, Guillermo Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; Argentina
Fil: Requejo, Felix Gregorio. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ferretti, Osmar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; Argentina
description X-ray absorption spectroscopy (XAS) can probe the local structure of very diluted and dispersed species, as occurs for active ones in catalysts. These studies can be performed even during catalytic reactions, by using in situ spectroscopic cells with realistic and well-defined hydrodynamics. The experimental cell reported here was previously employed in conventional X-ray absorption beamlines [1]. We endeavored to combine the specific characteristic of our cell with those of the DXAS beamline at the LNLS. The aim is to obtain a suitable experimental set up for time solved XAS catalysts characterizations. Although these first experiments do not provide any relevant information from the catalytic point of view due to experimental inconveniences at the beamline, from the instrumentation aspect it represents an attractive methodology for studies in catalysis. In this work we present preliminary EXAFS results obtained for Pt and PtSn catalyst supported on SiO2 at the Pt L3 edge at the DXAS beamline during reduction treatment in H2 flux in function of temperature.
publishDate 2005
dc.date.none.fl_str_mv 2005-12
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/11336/66517
Ramallo Lopez, Jose Martin; Santori, Gerardo Fabian; Casella, Mónica Laura; Siri, Guillermo Jorge; Requejo, Felix Gregorio; et al.; DXAS study of Pt-Sn supported catalysts during in-situ reduction treatments; Brazilian Synchrotron Light Laboratory; Activity Report LNLS; 2004; 12-2005; 1-2
1518-0204
CONICET Digital
CONICET
url http://hdl.handle.net/11336/66517
identifier_str_mv Ramallo Lopez, Jose Martin; Santori, Gerardo Fabian; Casella, Mónica Laura; Siri, Guillermo Jorge; Requejo, Felix Gregorio; et al.; DXAS study of Pt-Sn supported catalysts during in-situ reduction treatments; Brazilian Synchrotron Light Laboratory; Activity Report LNLS; 2004; 12-2005; 1-2
1518-0204
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://inis.iaea.org/search/searchsinglerecord.aspx?recordsFor=SingleRecord&RN=39118310
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 Brazilian Synchrotron Light Laboratory
publisher.none.fl_str_mv Brazilian Synchrotron Light Laboratory
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
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score 13.22299

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