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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/66517
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T09:33:35Zoai: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:34982025-09-29 09:33:35.3CONICET 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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1844613033099264000 |
score |
13.070432 |