EXAFS characterization of PtNi bimetallic catalyst applied to glycerol liquid-phase conversion

Autores
Barbelli, Maria Laura; Mizrahi, Martin Daniel; Pompeo, Francisco; Santori, Gerardo Fabian; Nichio, Nora Nancy; Ramallo Lopez, Jose Martin
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The aim of this work is to evaluate the catalytic properties (activity, selectivity, and stability) of PtNi catalysts supported on Ce−Zr−α-Al2O3 (CZA) in the liquid-phase conversion of glycerol and to relate them to the results of the EXAFS characterization. The PtNi/CZA catalyst presents the highest global activity and promotes the formation of liquid oxygenated hydrocarbons, mainly acetol and 1,2-propylene glycol, which are formed from glycerol hydrogenolysis. By means of EXAFS studies, it was determined that three phases are present: a PtNi3 nanoalloy, unalloyed metallic Pt with high dispersion, and unalloyed metallic Ni. The highest activity of the PtNi/CZA could be assigned to the presence of the PtNi3 alloy, which results in a more active phase than the Pt and Ni sites separately. The PtNi/CZA is the more stable, and the EXAFS results show that this behavior would be associated with the presence of the PtNi3 alloy nanoparticles on the surface of the Ni particles with low mobility.
Fil: Barbelli, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Fil: Mizrahi, Martin Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Pompeo, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina
Fil: Santori, Gerardo Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina
Fil: Nichio, Nora Nancy. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina
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
Materia
Exafs
Glycerol
Catalysis
Liquid-Phase
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:11336/5570
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/5570
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network_name_str CONICET Digital (CONICET)
spelling EXAFS characterization of PtNi bimetallic catalyst applied to glycerol liquid-phase conversionBarbelli, Maria LauraMizrahi, Martin DanielPompeo, FranciscoSantori, Gerardo FabianNichio, Nora NancyRamallo Lopez, Jose MartinExafsGlycerolCatalysisLiquid-Phasehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The aim of this work is to evaluate the catalytic properties (activity, selectivity, and stability) of PtNi catalysts supported on Ce−Zr−α-Al2O3 (CZA) in the liquid-phase conversion of glycerol and to relate them to the results of the EXAFS characterization. The PtNi/CZA catalyst presents the highest global activity and promotes the formation of liquid oxygenated hydrocarbons, mainly acetol and 1,2-propylene glycol, which are formed from glycerol hydrogenolysis. By means of EXAFS studies, it was determined that three phases are present: a PtNi3 nanoalloy, unalloyed metallic Pt with high dispersion, and unalloyed metallic Ni. The highest activity of the PtNi/CZA could be assigned to the presence of the PtNi3 alloy, which results in a more active phase than the Pt and Ni sites separately. The PtNi/CZA is the more stable, and the EXAFS results show that this behavior would be associated with the presence of the PtNi3 alloy nanoparticles on the surface of the Ni particles with low mobility.Fil: Barbelli, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; ArgentinaFil: Mizrahi, Martin Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Pompeo, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; ArgentinaFil: Santori, Gerardo Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; ArgentinaFil: Nichio, Nora Nancy. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; ArgentinaFil: Ramallo Lopez, Jose Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaAmerican Chemical Society2014-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5570Barbelli, Maria Laura; Mizrahi, Martin Daniel; Pompeo, Francisco; Santori, Gerardo Fabian; Nichio, Nora Nancy; et al.; EXAFS characterization of PtNi bimetallic catalyst applied to glycerol liquid-phase conversion; American Chemical Society; Journal Of Physical Chemistry C; 118; 41; 10-2014; 23645-236531932-7447enginfo:eu-repo/semantics/altIdentifier/doi/10.1021/jp412512xinfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/jp412512xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:41:19Zoai:ri.conicet.gov.ar:11336/5570instacron: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 09:41:19.969CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv EXAFS characterization of PtNi bimetallic catalyst applied to glycerol liquid-phase conversion
title EXAFS characterization of PtNi bimetallic catalyst applied to glycerol liquid-phase conversion
spellingShingle EXAFS characterization of PtNi bimetallic catalyst applied to glycerol liquid-phase conversion
Barbelli, Maria Laura
Exafs
Glycerol
Catalysis
Liquid-Phase
title_short EXAFS characterization of PtNi bimetallic catalyst applied to glycerol liquid-phase conversion
title_full EXAFS characterization of PtNi bimetallic catalyst applied to glycerol liquid-phase conversion
title_fullStr EXAFS characterization of PtNi bimetallic catalyst applied to glycerol liquid-phase conversion
title_full_unstemmed EXAFS characterization of PtNi bimetallic catalyst applied to glycerol liquid-phase conversion
title_sort EXAFS characterization of PtNi bimetallic catalyst applied to glycerol liquid-phase conversion
dc.creator.none.fl_str_mv Barbelli, Maria Laura
Mizrahi, Martin Daniel
Pompeo, Francisco
Santori, Gerardo Fabian
Nichio, Nora Nancy
Ramallo Lopez, Jose Martin
author Barbelli, Maria Laura
author_facet Barbelli, Maria Laura
Mizrahi, Martin Daniel
Pompeo, Francisco
Santori, Gerardo Fabian
Nichio, Nora Nancy
Ramallo Lopez, Jose Martin
author_role author
author2 Mizrahi, Martin Daniel
Pompeo, Francisco
Santori, Gerardo Fabian
Nichio, Nora Nancy
Ramallo Lopez, Jose Martin
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Exafs
Glycerol
Catalysis
Liquid-Phase
topic Exafs
Glycerol
Catalysis
Liquid-Phase
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The aim of this work is to evaluate the catalytic properties (activity, selectivity, and stability) of PtNi catalysts supported on Ce−Zr−α-Al2O3 (CZA) in the liquid-phase conversion of glycerol and to relate them to the results of the EXAFS characterization. The PtNi/CZA catalyst presents the highest global activity and promotes the formation of liquid oxygenated hydrocarbons, mainly acetol and 1,2-propylene glycol, which are formed from glycerol hydrogenolysis. By means of EXAFS studies, it was determined that three phases are present: a PtNi3 nanoalloy, unalloyed metallic Pt with high dispersion, and unalloyed metallic Ni. The highest activity of the PtNi/CZA could be assigned to the presence of the PtNi3 alloy, which results in a more active phase than the Pt and Ni sites separately. The PtNi/CZA is the more stable, and the EXAFS results show that this behavior would be associated with the presence of the PtNi3 alloy nanoparticles on the surface of the Ni particles with low mobility.
Fil: Barbelli, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Fil: Mizrahi, Martin Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Pompeo, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina
Fil: Santori, Gerardo Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina
Fil: Nichio, Nora Nancy. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina. Universidad Nacional de La Plata. Facultad de Ingenieria; Argentina
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
description The aim of this work is to evaluate the catalytic properties (activity, selectivity, and stability) of PtNi catalysts supported on Ce−Zr−α-Al2O3 (CZA) in the liquid-phase conversion of glycerol and to relate them to the results of the EXAFS characterization. The PtNi/CZA catalyst presents the highest global activity and promotes the formation of liquid oxygenated hydrocarbons, mainly acetol and 1,2-propylene glycol, which are formed from glycerol hydrogenolysis. By means of EXAFS studies, it was determined that three phases are present: a PtNi3 nanoalloy, unalloyed metallic Pt with high dispersion, and unalloyed metallic Ni. The highest activity of the PtNi/CZA could be assigned to the presence of the PtNi3 alloy, which results in a more active phase than the Pt and Ni sites separately. The PtNi/CZA is the more stable, and the EXAFS results show that this behavior would be associated with the presence of the PtNi3 alloy nanoparticles on the surface of the Ni particles with low mobility.
publishDate 2014
dc.date.none.fl_str_mv 2014-10
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/11336/5570
Barbelli, Maria Laura; Mizrahi, Martin Daniel; Pompeo, Francisco; Santori, Gerardo Fabian; Nichio, Nora Nancy; et al.; EXAFS characterization of PtNi bimetallic catalyst applied to glycerol liquid-phase conversion; American Chemical Society; Journal Of Physical Chemistry C; 118; 41; 10-2014; 23645-23653
1932-7447
url http://hdl.handle.net/11336/5570
identifier_str_mv Barbelli, Maria Laura; Mizrahi, Martin Daniel; Pompeo, Francisco; Santori, Gerardo Fabian; Nichio, Nora Nancy; et al.; EXAFS characterization of PtNi bimetallic catalyst applied to glycerol liquid-phase conversion; American Chemical Society; Journal Of Physical Chemistry C; 118; 41; 10-2014; 23645-23653
1932-7447
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/jp412512x
info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/jp412512x
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
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
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
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score 13.070432

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