Study of the performance and stability in the dry reforming of methane of doped alumina supported iridium catalysts

Iridium catalysts supported on alumina doped with both alkaline (Na and K) and alkaline earth metals (Ba, Ca and Mg) of different concentrations (1, 5 and 10 wt%) were tested in the dry reforming of methane. Supports were characterized by X-ray diffraction, BET surface area, temperature-programmed d...

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Detalles Bibliográficos
Autores: Maina, Silvia Carolina Palmira, Ballarini, Adriana Daniela, Vilella, Irene María Julieta, de Miguel, Sergio Ruben
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/183962
Acceso en línea:http://hdl.handle.net/11336/183962
Access Level:acceso abierto
Palabra clave:DOPED ALUMINA
DRY REFORMING
IR CATALYSTS
SYNGAS
https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
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spelling Study of the performance and stability in the dry reforming of methane of doped alumina supported iridium catalystsMaina, Silvia Carolina PalmiraBallarini, Adriana DanielaVilella, Irene María Julietade Miguel, Sergio RubenDOPED ALUMINADRY REFORMINGIR CATALYSTSSYNGAShttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Iridium catalysts supported on alumina doped with both alkaline (Na and K) and alkaline earth metals (Ba, Ca and Mg) of different concentrations (1, 5 and 10 wt%) were tested in the dry reforming of methane. Supports were characterized by X-ray diffraction, BET surface area, temperature-programmed desorption of CO2 and 2-propanol dehydration. Catalysts were characterized by temperature-programmed reduction, TEM, XPS, cyclohexane dehydrogenation and cyclopentane hydrogenolysis. Dopants were showed to suppress the acidity of the support and the γ-Al2O3 phase remained in the supports doped with Ca, Ba, Na and K after calcination at 800 °C, whereas a phase transition to magnesium aluminate was found for magnesium doped alumina. Stability tests, using long time dry reforming reactions, showed that iridium catalysts have high sintering resistance, their metallic phases being very stable since neither carbon deposition nor sinterization processes were observed.Fil: Maina, Silvia Carolina Palmira. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Ballarini, Adriana Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Vilella, Irene María Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: de Miguel, Sergio Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaElsevier Science2018-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/183962Maina, Silvia Carolina Palmira; Ballarini, Adriana Daniela; Vilella, Irene María Julieta; de Miguel, Sergio Ruben; Study of the performance and stability in the dry reforming of methane of doped alumina supported iridium catalysts; Elsevier Science; Catalysis Today; 344; 11-2018; 129-1420920-5861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2018.11.023info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0920586118302426info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:39:56Zoai:ri.conicet.gov.ar:11336/183962instacron: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:34982024-05-08 13:39:57.185CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Study of the performance and stability in the dry reforming of methane of doped alumina supported iridium catalysts
title Study of the performance and stability in the dry reforming of methane of doped alumina supported iridium catalysts
spellingShingle Study of the performance and stability in the dry reforming of methane of doped alumina supported iridium catalysts
Maina, Silvia Carolina Palmira
DOPED ALUMINA
DRY REFORMING
IR CATALYSTS
SYNGAS
https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
title_short Study of the performance and stability in the dry reforming of methane of doped alumina supported iridium catalysts
title_full Study of the performance and stability in the dry reforming of methane of doped alumina supported iridium catalysts
title_fullStr Study of the performance and stability in the dry reforming of methane of doped alumina supported iridium catalysts
title_full_unstemmed Study of the performance and stability in the dry reforming of methane of doped alumina supported iridium catalysts
title_sort Study of the performance and stability in the dry reforming of methane of doped alumina supported iridium catalysts
dc.creator.none.fl_str_mv Maina, Silvia Carolina Palmira
Ballarini, Adriana Daniela
Vilella, Irene María Julieta
de Miguel, Sergio Ruben
author Maina, Silvia Carolina Palmira
author_facet Maina, Silvia Carolina Palmira
Ballarini, Adriana Daniela
Vilella, Irene María Julieta
de Miguel, Sergio Ruben
author_role author
author2 Ballarini, Adriana Daniela
Vilella, Irene María Julieta
de Miguel, Sergio Ruben
author2_role author
author
author
dc.subject.none.fl_str_mv DOPED ALUMINA
DRY REFORMING
IR CATALYSTS
SYNGAS
https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
topic DOPED ALUMINA
DRY REFORMING
IR CATALYSTS
SYNGAS
https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
description Iridium catalysts supported on alumina doped with both alkaline (Na and K) and alkaline earth metals (Ba, Ca and Mg) of different concentrations (1, 5 and 10 wt%) were tested in the dry reforming of methane. Supports were characterized by X-ray diffraction, BET surface area, temperature-programmed desorption of CO2 and 2-propanol dehydration. Catalysts were characterized by temperature-programmed reduction, TEM, XPS, cyclohexane dehydrogenation and cyclopentane hydrogenolysis. Dopants were showed to suppress the acidity of the support and the γ-Al2O3 phase remained in the supports doped with Ca, Ba, Na and K after calcination at 800 °C, whereas a phase transition to magnesium aluminate was found for magnesium doped alumina. Stability tests, using long time dry reforming reactions, showed that iridium catalysts have high sintering resistance, their metallic phases being very stable since neither carbon deposition nor sinterization processes were observed.
publishDate 2018
dc.date.none.fl_str_mv 2018-11
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/11336/183962
Maina, Silvia Carolina Palmira; Ballarini, Adriana Daniela; Vilella, Irene María Julieta; de Miguel, Sergio Ruben; Study of the performance and stability in the dry reforming of methane of doped alumina supported iridium catalysts; Elsevier Science; Catalysis Today; 344; 11-2018; 129-142
0920-5861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/183962
identifier_str_mv Maina, Silvia Carolina Palmira; Ballarini, Adriana Daniela; Vilella, Irene María Julieta; de Miguel, Sergio Ruben; Study of the performance and stability in the dry reforming of methane of doped alumina supported iridium catalysts; Elsevier Science; Catalysis Today; 344; 11-2018; 129-142
0920-5861
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.cattod.2018.11.023
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0920586118302426
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
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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 15.811543

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