Supported Rh nanoparticles on CaO–SiO2 binary systems for the reforming of methane by carbon dioxide in membrane reactors

Autores
Múnera Agudelo, John Fernando; Faroldi, Betina María Cecilia; Frutis, Emanuel Alejandro; Lombardo, Eduardo Agustin; Cornaglia, Laura Maria; Gonzalez Carrazán, Silvia
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A set of Rh catalysts supported on a binary CaO–SiO2 system with different CaO content was prepared to investigate their textural and structural properties, Rh particle size, and catalytic performance in the dry reforming of methane reaction. The Rh nanoparticles and nanocrystalline structures in the reduced catalysts were characterized through HRTEM and CO chemisorption. EDX mapping showed that CaO is uniformly distributed on SiO2 and that no segregation is detected between them. Rh nanoparticles of about 1–2.6 nm were observed. These particle sizes indicate that Rh is well dispersed on the catalyst surface and that no agglomeration exists. The incorporation of the promoter (CaO) to the silica support induced an increase in the metal dispersion from 8% in Rh/SiO2 to 22–80% in Rh/CaO–SiO2 catalysts. However, the Rh dispersion decreased as the CaO loading also increased in the binary supports. For the high CaO load solids, a high stability was observed after 80 h on stream for the dry reforming of methane. In addition, the solid with 27% CaO presented the higher methane reaction rate. As a consequence, this solid was selected for its application in a membrane reactor under different conditions. The increase of methane conversion with reaction pressure at high sweep gas flow rate indicates that the separation efficiency of the Pd membrane is sufficiently high to dominate the performance of Pd membrane reactors under those conditions.
Fil: Múnera Agudelo, John Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Faroldi, Betina María Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Frutis, Emanuel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Lombardo, Eduardo Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Cornaglia, Laura Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Gonzalez Carrazán, Silvia. Universidad de Salamanca; España
Materia
Methane Reforming
Rh
Cao-Sio2 Binary Support
Hydrogen Production
Membrane Reactor
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:11336/31029
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Supported Rh nanoparticles on CaO–SiO2 binary systems for the reforming of methane by carbon dioxide in membrane reactorsMúnera Agudelo, John FernandoFaroldi, Betina María CeciliaFrutis, Emanuel AlejandroLombardo, Eduardo AgustinCornaglia, Laura MariaGonzalez Carrazán, SilviaMethane ReformingRhCao-Sio2 Binary SupportHydrogen ProductionMembrane Reactorhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2A set of Rh catalysts supported on a binary CaO–SiO2 system with different CaO content was prepared to investigate their textural and structural properties, Rh particle size, and catalytic performance in the dry reforming of methane reaction. The Rh nanoparticles and nanocrystalline structures in the reduced catalysts were characterized through HRTEM and CO chemisorption. EDX mapping showed that CaO is uniformly distributed on SiO2 and that no segregation is detected between them. Rh nanoparticles of about 1–2.6 nm were observed. These particle sizes indicate that Rh is well dispersed on the catalyst surface and that no agglomeration exists. The incorporation of the promoter (CaO) to the silica support induced an increase in the metal dispersion from 8% in Rh/SiO2 to 22–80% in Rh/CaO–SiO2 catalysts. However, the Rh dispersion decreased as the CaO loading also increased in the binary supports. For the high CaO load solids, a high stability was observed after 80 h on stream for the dry reforming of methane. In addition, the solid with 27% CaO presented the higher methane reaction rate. As a consequence, this solid was selected for its application in a membrane reactor under different conditions. The increase of methane conversion with reaction pressure at high sweep gas flow rate indicates that the separation efficiency of the Pd membrane is sufficiently high to dominate the performance of Pd membrane reactors under those conditions.Fil: Múnera Agudelo, John Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Faroldi, Betina María Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Frutis, Emanuel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Lombardo, Eduardo Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Cornaglia, Laura Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Gonzalez Carrazán, Silvia. Universidad de Salamanca; EspañaElsevier2013-09info: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/11336/31029Gonzalez Carrazán, Silvia; Cornaglia, Laura Maria; Lombardo, Eduardo Agustin; Frutis, Emanuel Alejandro; Faroldi, Betina María Cecilia; Múnera Agudelo, John Fernando; et al.; Supported Rh nanoparticles on CaO–SiO2 binary systems for the reforming of methane by carbon dioxide in membrane reactors; Elsevier; Applied Catalysis A: General; 474; 9-2013; 114-1240926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2013.09.018info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926860X13005607info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:22:48Zoai:ri.conicet.gov.ar:11336/31029instacron: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 15:22:48.517CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Supported Rh nanoparticles on CaO–SiO2 binary systems for the reforming of methane by carbon dioxide in membrane reactors
title Supported Rh nanoparticles on CaO–SiO2 binary systems for the reforming of methane by carbon dioxide in membrane reactors
spellingShingle Supported Rh nanoparticles on CaO–SiO2 binary systems for the reforming of methane by carbon dioxide in membrane reactors
Múnera Agudelo, John Fernando
Methane Reforming
Rh
Cao-Sio2 Binary Support
Hydrogen Production
Membrane Reactor
title_short Supported Rh nanoparticles on CaO–SiO2 binary systems for the reforming of methane by carbon dioxide in membrane reactors
title_full Supported Rh nanoparticles on CaO–SiO2 binary systems for the reforming of methane by carbon dioxide in membrane reactors
title_fullStr Supported Rh nanoparticles on CaO–SiO2 binary systems for the reforming of methane by carbon dioxide in membrane reactors
title_full_unstemmed Supported Rh nanoparticles on CaO–SiO2 binary systems for the reforming of methane by carbon dioxide in membrane reactors
title_sort Supported Rh nanoparticles on CaO–SiO2 binary systems for the reforming of methane by carbon dioxide in membrane reactors
dc.creator.none.fl_str_mv Múnera Agudelo, John Fernando
Faroldi, Betina María Cecilia
Frutis, Emanuel Alejandro
Lombardo, Eduardo Agustin
Cornaglia, Laura Maria
Gonzalez Carrazán, Silvia
author Múnera Agudelo, John Fernando
author_facet Múnera Agudelo, John Fernando
Faroldi, Betina María Cecilia
Frutis, Emanuel Alejandro
Lombardo, Eduardo Agustin
Cornaglia, Laura Maria
Gonzalez Carrazán, Silvia
author_role author
author2 Faroldi, Betina María Cecilia
Frutis, Emanuel Alejandro
Lombardo, Eduardo Agustin
Cornaglia, Laura Maria
Gonzalez Carrazán, Silvia
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Methane Reforming
Rh
Cao-Sio2 Binary Support
Hydrogen Production
Membrane Reactor
topic Methane Reforming
Rh
Cao-Sio2 Binary Support
Hydrogen Production
Membrane Reactor
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A set of Rh catalysts supported on a binary CaO–SiO2 system with different CaO content was prepared to investigate their textural and structural properties, Rh particle size, and catalytic performance in the dry reforming of methane reaction. The Rh nanoparticles and nanocrystalline structures in the reduced catalysts were characterized through HRTEM and CO chemisorption. EDX mapping showed that CaO is uniformly distributed on SiO2 and that no segregation is detected between them. Rh nanoparticles of about 1–2.6 nm were observed. These particle sizes indicate that Rh is well dispersed on the catalyst surface and that no agglomeration exists. The incorporation of the promoter (CaO) to the silica support induced an increase in the metal dispersion from 8% in Rh/SiO2 to 22–80% in Rh/CaO–SiO2 catalysts. However, the Rh dispersion decreased as the CaO loading also increased in the binary supports. For the high CaO load solids, a high stability was observed after 80 h on stream for the dry reforming of methane. In addition, the solid with 27% CaO presented the higher methane reaction rate. As a consequence, this solid was selected for its application in a membrane reactor under different conditions. The increase of methane conversion with reaction pressure at high sweep gas flow rate indicates that the separation efficiency of the Pd membrane is sufficiently high to dominate the performance of Pd membrane reactors under those conditions.
Fil: Múnera Agudelo, John Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Faroldi, Betina María Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Frutis, Emanuel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Lombardo, Eduardo Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Cornaglia, Laura Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Gonzalez Carrazán, Silvia. Universidad de Salamanca; España
description A set of Rh catalysts supported on a binary CaO–SiO2 system with different CaO content was prepared to investigate their textural and structural properties, Rh particle size, and catalytic performance in the dry reforming of methane reaction. The Rh nanoparticles and nanocrystalline structures in the reduced catalysts were characterized through HRTEM and CO chemisorption. EDX mapping showed that CaO is uniformly distributed on SiO2 and that no segregation is detected between them. Rh nanoparticles of about 1–2.6 nm were observed. These particle sizes indicate that Rh is well dispersed on the catalyst surface and that no agglomeration exists. The incorporation of the promoter (CaO) to the silica support induced an increase in the metal dispersion from 8% in Rh/SiO2 to 22–80% in Rh/CaO–SiO2 catalysts. However, the Rh dispersion decreased as the CaO loading also increased in the binary supports. For the high CaO load solids, a high stability was observed after 80 h on stream for the dry reforming of methane. In addition, the solid with 27% CaO presented the higher methane reaction rate. As a consequence, this solid was selected for its application in a membrane reactor under different conditions. The increase of methane conversion with reaction pressure at high sweep gas flow rate indicates that the separation efficiency of the Pd membrane is sufficiently high to dominate the performance of Pd membrane reactors under those conditions.
publishDate 2013
dc.date.none.fl_str_mv 2013-09
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/11336/31029
Gonzalez Carrazán, Silvia; Cornaglia, Laura Maria; Lombardo, Eduardo Agustin; Frutis, Emanuel Alejandro; Faroldi, Betina María Cecilia; Múnera Agudelo, John Fernando; et al.; Supported Rh nanoparticles on CaO–SiO2 binary systems for the reforming of methane by carbon dioxide in membrane reactors; Elsevier; Applied Catalysis A: General; 474; 9-2013; 114-124
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/31029
identifier_str_mv Gonzalez Carrazán, Silvia; Cornaglia, Laura Maria; Lombardo, Eduardo Agustin; Frutis, Emanuel Alejandro; Faroldi, Betina María Cecilia; Múnera Agudelo, John Fernando; et al.; Supported Rh nanoparticles on CaO–SiO2 binary systems for the reforming of methane by carbon dioxide in membrane reactors; Elsevier; Applied Catalysis A: General; 474; 9-2013; 114-124
0926-860X
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.apcata.2013.09.018
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926860X13005607
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
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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