In/zeolites prepared by oxidative solid state ion exchange (OSSIE): Surface species and structural characterization

Autores
Zamaro, Juan Manuel; Miro, Eduardo Ernesto; Boix, Alicia Viviana; Hernández Martínez, Miguel Angel; Fuentes, Gustavo A.
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The characteristics of surface indium species and the transformations suffered by In/zeolite catalysts during the indium incorporation process by oxidative solid state ion exchange (OSSIE) are studied. This method causes a progressive dealumination of mordenite during the exchange process evidenced by 29Si MAS NMR and 27Al MAS NMR, producing a high proportion of octahedral aluminum that is further distorted at higher temperatures. However, ZSM5 is a much more stable framework for this exchange process. Exchanged indium (InO)+ and highly-dispersed indium oxide species (InxOy) have the ability of adsorbing NO and further oxidizing it towards NO2. Together with these dispersed species, a certain proportion of In2O3 crystals can be observed by XRD, which is higher for In/ZSM5. This zeolite presents a lower threshold dispersion capacity. Wider and asymmetric XPS In 3d5/2 signals indicate the presence of two surface indium species, one of them with a similar behavior to that of bulk oxide albeit not equal,
and the other strongly interacting with the zeolite. The high temperature treatment does not modify the amount of surface indium species but changes their relative proportions. The quantity of highly dispersed species is increased on In/mordenite while the opposite occurs as regards on In/ZSM5. This latter zeolite is constituted by small, packed crystals with lower superficial acidic OH groups, which could originate a higher amount of voluminous polynuclear indium cations remaining on the zeolite crystal surface during impregnation, thus provoking the higher proportion of In2O3 outside channels after OSSIE. Structural modifications are also observed by FTIR being higher for mordenite, such as OH depletion by solid-state exchange, dehydroxilation and creation of extra-framework Al OH species.
Fil: Zamaro, Juan Manuel. 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"; Argentina
Fil: Miro, Eduardo Ernesto. 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"; Argentina
Fil: Boix, Alicia Viviana. 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"; Argentina
Fil: Hernández Martínez, Miguel Angel. Universidad Autonoma de Nuevo Leon; México
Fil: Fuentes, Gustavo A.. Universidad Autonoma Metropolitana - Iztapalapa; México
Materia
Indium
Mordenite
Zsm5
Solid-State Exchange
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:11336/54030
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/54030
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling In/zeolites prepared by oxidative solid state ion exchange (OSSIE): Surface species and structural characterizationZamaro, Juan ManuelMiro, Eduardo ErnestoBoix, Alicia VivianaHernández Martínez, Miguel AngelFuentes, Gustavo A.IndiumMordeniteZsm5Solid-State Exchangehttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The characteristics of surface indium species and the transformations suffered by In/zeolite catalysts during the indium incorporation process by oxidative solid state ion exchange (OSSIE) are studied. This method causes a progressive dealumination of mordenite during the exchange process evidenced by 29Si MAS NMR and 27Al MAS NMR, producing a high proportion of octahedral aluminum that is further distorted at higher temperatures. However, ZSM5 is a much more stable framework for this exchange process. Exchanged indium (InO)+ and highly-dispersed indium oxide species (InxOy) have the ability of adsorbing NO and further oxidizing it towards NO2. Together with these dispersed species, a certain proportion of In2O3 crystals can be observed by XRD, which is higher for In/ZSM5. This zeolite presents a lower threshold dispersion capacity. Wider and asymmetric XPS In 3d5/2 signals indicate the presence of two surface indium species, one of them with a similar behavior to that of bulk oxide albeit not equal,<br />and the other strongly interacting with the zeolite. The high temperature treatment does not modify the amount of surface indium species but changes their relative proportions. The quantity of highly dispersed species is increased on In/mordenite while the opposite occurs as regards on In/ZSM5. This latter zeolite is constituted by small, packed crystals with lower superficial acidic OH groups, which could originate a higher amount of voluminous polynuclear indium cations remaining on the zeolite crystal surface during impregnation, thus provoking the higher proportion of In2O3 outside channels after OSSIE. Structural modifications are also observed by FTIR being higher for mordenite, such as OH depletion by solid-state exchange, dehydroxilation and creation of extra-framework Al OH species.Fil: Zamaro, Juan Manuel. 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: Miro, Eduardo Ernesto. 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: Boix, Alicia Viviana. 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: Hernández Martínez, Miguel Angel. Universidad Autonoma de Nuevo Leon; MéxicoFil: Fuentes, Gustavo A.. Universidad Autonoma Metropolitana - Iztapalapa; MéxicoElsevier Science2010-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/54030Zamaro, Juan Manuel; Miro, Eduardo Ernesto; Boix, Alicia Viviana; Hernández Martínez, Miguel Angel; Fuentes, Gustavo A.; In/zeolites prepared by oxidative solid state ion exchange (OSSIE): Surface species and structural characterization; Elsevier Science; Microporous and Mesoporous Materials; 129; 4-2010; 74-811387-1811CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.micromeso.2009.08.035info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-03T08:53:33Zoai:ri.conicet.gov.ar:11336/54030instacron: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:34982025-12-03 08:53:33.345CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv In/zeolites prepared by oxidative solid state ion exchange (OSSIE): Surface species and structural characterization
title In/zeolites prepared by oxidative solid state ion exchange (OSSIE): Surface species and structural characterization
spellingShingle In/zeolites prepared by oxidative solid state ion exchange (OSSIE): Surface species and structural characterization
Zamaro, Juan Manuel
Indium
Mordenite
Zsm5
Solid-State Exchange
title_short In/zeolites prepared by oxidative solid state ion exchange (OSSIE): Surface species and structural characterization
title_full In/zeolites prepared by oxidative solid state ion exchange (OSSIE): Surface species and structural characterization
title_fullStr In/zeolites prepared by oxidative solid state ion exchange (OSSIE): Surface species and structural characterization
title_full_unstemmed In/zeolites prepared by oxidative solid state ion exchange (OSSIE): Surface species and structural characterization
title_sort In/zeolites prepared by oxidative solid state ion exchange (OSSIE): Surface species and structural characterization
dc.creator.none.fl_str_mv Zamaro, Juan Manuel
Miro, Eduardo Ernesto
Boix, Alicia Viviana
Hernández Martínez, Miguel Angel
Fuentes, Gustavo A.
author Zamaro, Juan Manuel
author_facet Zamaro, Juan Manuel
Miro, Eduardo Ernesto
Boix, Alicia Viviana
Hernández Martínez, Miguel Angel
Fuentes, Gustavo A.
author_role author
author2 Miro, Eduardo Ernesto
Boix, Alicia Viviana
Hernández Martínez, Miguel Angel
Fuentes, Gustavo A.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Indium
Mordenite
Zsm5
Solid-State Exchange
topic Indium
Mordenite
Zsm5
Solid-State Exchange
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The characteristics of surface indium species and the transformations suffered by In/zeolite catalysts during the indium incorporation process by oxidative solid state ion exchange (OSSIE) are studied. This method causes a progressive dealumination of mordenite during the exchange process evidenced by 29Si MAS NMR and 27Al MAS NMR, producing a high proportion of octahedral aluminum that is further distorted at higher temperatures. However, ZSM5 is a much more stable framework for this exchange process. Exchanged indium (InO)+ and highly-dispersed indium oxide species (InxOy) have the ability of adsorbing NO and further oxidizing it towards NO2. Together with these dispersed species, a certain proportion of In2O3 crystals can be observed by XRD, which is higher for In/ZSM5. This zeolite presents a lower threshold dispersion capacity. Wider and asymmetric XPS In 3d5/2 signals indicate the presence of two surface indium species, one of them with a similar behavior to that of bulk oxide albeit not equal,<br />and the other strongly interacting with the zeolite. The high temperature treatment does not modify the amount of surface indium species but changes their relative proportions. The quantity of highly dispersed species is increased on In/mordenite while the opposite occurs as regards on In/ZSM5. This latter zeolite is constituted by small, packed crystals with lower superficial acidic OH groups, which could originate a higher amount of voluminous polynuclear indium cations remaining on the zeolite crystal surface during impregnation, thus provoking the higher proportion of In2O3 outside channels after OSSIE. Structural modifications are also observed by FTIR being higher for mordenite, such as OH depletion by solid-state exchange, dehydroxilation and creation of extra-framework Al OH species.
Fil: Zamaro, Juan Manuel. 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"; Argentina
Fil: Miro, Eduardo Ernesto. 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"; Argentina
Fil: Boix, Alicia Viviana. 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"; Argentina
Fil: Hernández Martínez, Miguel Angel. Universidad Autonoma de Nuevo Leon; México
Fil: Fuentes, Gustavo A.. Universidad Autonoma Metropolitana - Iztapalapa; México
description The characteristics of surface indium species and the transformations suffered by In/zeolite catalysts during the indium incorporation process by oxidative solid state ion exchange (OSSIE) are studied. This method causes a progressive dealumination of mordenite during the exchange process evidenced by 29Si MAS NMR and 27Al MAS NMR, producing a high proportion of octahedral aluminum that is further distorted at higher temperatures. However, ZSM5 is a much more stable framework for this exchange process. Exchanged indium (InO)+ and highly-dispersed indium oxide species (InxOy) have the ability of adsorbing NO and further oxidizing it towards NO2. Together with these dispersed species, a certain proportion of In2O3 crystals can be observed by XRD, which is higher for In/ZSM5. This zeolite presents a lower threshold dispersion capacity. Wider and asymmetric XPS In 3d5/2 signals indicate the presence of two surface indium species, one of them with a similar behavior to that of bulk oxide albeit not equal,<br />and the other strongly interacting with the zeolite. The high temperature treatment does not modify the amount of surface indium species but changes their relative proportions. The quantity of highly dispersed species is increased on In/mordenite while the opposite occurs as regards on In/ZSM5. This latter zeolite is constituted by small, packed crystals with lower superficial acidic OH groups, which could originate a higher amount of voluminous polynuclear indium cations remaining on the zeolite crystal surface during impregnation, thus provoking the higher proportion of In2O3 outside channels after OSSIE. Structural modifications are also observed by FTIR being higher for mordenite, such as OH depletion by solid-state exchange, dehydroxilation and creation of extra-framework Al OH species.
publishDate 2010
dc.date.none.fl_str_mv 2010-04
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/11336/54030
Zamaro, Juan Manuel; Miro, Eduardo Ernesto; Boix, Alicia Viviana; Hernández Martínez, Miguel Angel; Fuentes, Gustavo A.; In/zeolites prepared by oxidative solid state ion exchange (OSSIE): Surface species and structural characterization; Elsevier Science; Microporous and Mesoporous Materials; 129; 4-2010; 74-81
1387-1811
CONICET Digital
CONICET
url http://hdl.handle.net/11336/54030
identifier_str_mv Zamaro, Juan Manuel; Miro, Eduardo Ernesto; Boix, Alicia Viviana; Hernández Martínez, Miguel Angel; Fuentes, Gustavo A.; In/zeolites prepared by oxidative solid state ion exchange (OSSIE): Surface species and structural characterization; Elsevier Science; Microporous and Mesoporous Materials; 129; 4-2010; 74-81
1387-1811
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.micromeso.2009.08.035
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 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
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 13.214268

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