Characterization of dispersed indium species obtained by thermal treatment of In-NH4-zeolites and their impact on the SCR of NOx

Autores
Decolatti, Hernán Pablo; Martínez Hernández, Angel; Gutierrez, Laura Beatriz; Fuentes, Gustavo A.; Zamaro, Juan Manuel
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Indium species dispersed on zeolites by high temperature treatment in air of indium-impregnated NH4-zeolites were characterized and related to the catalytic behavior of the solids in the selective catalytic reduction of NOx. NO-TPD, H2-TPR and CO-TPR experimental results show that higher temperatures increase the fraction of dispersed InO+ and InxOy phases. These species can oxidize nitric oxide to NO2 and are in greater amounts on the mordenite framework. X-ray indium mapping and TEM observations show a heterogeneous distribution of In 2O3 particles in solids with higher indium content. These oxides have smaller crystal size and a larger interaction in the framework of ZSM5. TGA-SDTA results point out that the thermal treatment simultaneously produces a solid-state indium exchange and a zeolite dehydroxylation, the exchange level being higher at larger indium contents. The catalytic behavior of the In-zeolites studied can be explained in terms of the type and proportion of indium species present according to the indium loading, thermal treatment and type of zeolite framework. For both zeolites, a higher temperature treatment extends the NOx conversion windows because there are larger amounts of active InO+. But the maximum deNOx activity is lower for In-mordenite due to the larger amounts of InxOy in this zeolite. This non-selective phase increases the methane conversion level. When the indium content is higher, the deNOx activity further increases, in line with a larger fraction of active InO+ species. Besides, the catalytic activity of the solids does not decrease despite the excess of indium in these samples under the form of In2O3 crystals.
Fil: Decolatti, Hernán Pablo. 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: Martínez Hernández, Angel. Universidad Autónoma de Nuevo León; México
Fil: Gutierrez, Laura Beatriz. 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: Fuentes, Gustavo A.. Universidad Autónoma Metropolitana; México
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
Materia
Dispersion
Exchange
Impregnation
Indium-Zeolites
Scr of Nox
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:11336/52875
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/52875
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Characterization of dispersed indium species obtained by thermal treatment of In-NH4-zeolites and their impact on the SCR of NOxDecolatti, Hernán PabloMartínez Hernández, AngelGutierrez, Laura BeatrizFuentes, Gustavo A.Zamaro, Juan ManuelDispersionExchangeImpregnationIndium-ZeolitesScr of Noxhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Indium species dispersed on zeolites by high temperature treatment in air of indium-impregnated NH4-zeolites were characterized and related to the catalytic behavior of the solids in the selective catalytic reduction of NOx. NO-TPD, H2-TPR and CO-TPR experimental results show that higher temperatures increase the fraction of dispersed InO+ and InxOy phases. These species can oxidize nitric oxide to NO2 and are in greater amounts on the mordenite framework. X-ray indium mapping and TEM observations show a heterogeneous distribution of In 2O3 particles in solids with higher indium content. These oxides have smaller crystal size and a larger interaction in the framework of ZSM5. TGA-SDTA results point out that the thermal treatment simultaneously produces a solid-state indium exchange and a zeolite dehydroxylation, the exchange level being higher at larger indium contents. The catalytic behavior of the In-zeolites studied can be explained in terms of the type and proportion of indium species present according to the indium loading, thermal treatment and type of zeolite framework. For both zeolites, a higher temperature treatment extends the NOx conversion windows because there are larger amounts of active InO+. But the maximum deNOx activity is lower for In-mordenite due to the larger amounts of InxOy in this zeolite. This non-selective phase increases the methane conversion level. When the indium content is higher, the deNOx activity further increases, in line with a larger fraction of active InO+ species. Besides, the catalytic activity of the solids does not decrease despite the excess of indium in these samples under the form of In2O3 crystals.Fil: Decolatti, Hernán Pablo. 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: Martínez Hernández, Angel. Universidad Autónoma de Nuevo León; MéxicoFil: Gutierrez, Laura Beatriz. 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: Fuentes, Gustavo A.. Universidad Autónoma Metropolitana; MéxicoFil: 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"; ArgentinaElsevier Science2011-11info: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/11336/52875Decolatti, Hernán Pablo; Martínez Hernández, Angel; Gutierrez, Laura Beatriz; Fuentes, Gustavo A.; Zamaro, Juan Manuel; Characterization of dispersed indium species obtained by thermal treatment of In-NH4-zeolites and their impact on the SCR of NOx; Elsevier Science; Microporous and Mesoporous Materials; 145; 1-3; 11-2011; 41-501387-1811CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.micromeso.2011.04.018info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1387181111001843info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:03:58Zoai:ri.conicet.gov.ar:11336/52875instacron: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:34982025-09-03 10:03:58.684CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Characterization of dispersed indium species obtained by thermal treatment of In-NH4-zeolites and their impact on the SCR of NOx
title Characterization of dispersed indium species obtained by thermal treatment of In-NH4-zeolites and their impact on the SCR of NOx
spellingShingle Characterization of dispersed indium species obtained by thermal treatment of In-NH4-zeolites and their impact on the SCR of NOx
Decolatti, Hernán Pablo
Dispersion
Exchange
Impregnation
Indium-Zeolites
Scr of Nox
title_short Characterization of dispersed indium species obtained by thermal treatment of In-NH4-zeolites and their impact on the SCR of NOx
title_full Characterization of dispersed indium species obtained by thermal treatment of In-NH4-zeolites and their impact on the SCR of NOx
title_fullStr Characterization of dispersed indium species obtained by thermal treatment of In-NH4-zeolites and their impact on the SCR of NOx
title_full_unstemmed Characterization of dispersed indium species obtained by thermal treatment of In-NH4-zeolites and their impact on the SCR of NOx
title_sort Characterization of dispersed indium species obtained by thermal treatment of In-NH4-zeolites and their impact on the SCR of NOx
dc.creator.none.fl_str_mv Decolatti, Hernán Pablo
Martínez Hernández, Angel
Gutierrez, Laura Beatriz
Fuentes, Gustavo A.
Zamaro, Juan Manuel
author Decolatti, Hernán Pablo
author_facet Decolatti, Hernán Pablo
Martínez Hernández, Angel
Gutierrez, Laura Beatriz
Fuentes, Gustavo A.
Zamaro, Juan Manuel
author_role author
author2 Martínez Hernández, Angel
Gutierrez, Laura Beatriz
Fuentes, Gustavo A.
Zamaro, Juan Manuel
author2_role author
author
author
author
dc.subject.none.fl_str_mv Dispersion
Exchange
Impregnation
Indium-Zeolites
Scr of Nox
topic Dispersion
Exchange
Impregnation
Indium-Zeolites
Scr of Nox
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Indium species dispersed on zeolites by high temperature treatment in air of indium-impregnated NH4-zeolites were characterized and related to the catalytic behavior of the solids in the selective catalytic reduction of NOx. NO-TPD, H2-TPR and CO-TPR experimental results show that higher temperatures increase the fraction of dispersed InO+ and InxOy phases. These species can oxidize nitric oxide to NO2 and are in greater amounts on the mordenite framework. X-ray indium mapping and TEM observations show a heterogeneous distribution of In 2O3 particles in solids with higher indium content. These oxides have smaller crystal size and a larger interaction in the framework of ZSM5. TGA-SDTA results point out that the thermal treatment simultaneously produces a solid-state indium exchange and a zeolite dehydroxylation, the exchange level being higher at larger indium contents. The catalytic behavior of the In-zeolites studied can be explained in terms of the type and proportion of indium species present according to the indium loading, thermal treatment and type of zeolite framework. For both zeolites, a higher temperature treatment extends the NOx conversion windows because there are larger amounts of active InO+. But the maximum deNOx activity is lower for In-mordenite due to the larger amounts of InxOy in this zeolite. This non-selective phase increases the methane conversion level. When the indium content is higher, the deNOx activity further increases, in line with a larger fraction of active InO+ species. Besides, the catalytic activity of the solids does not decrease despite the excess of indium in these samples under the form of In2O3 crystals.
Fil: Decolatti, Hernán Pablo. 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: Martínez Hernández, Angel. Universidad Autónoma de Nuevo León; México
Fil: Gutierrez, Laura Beatriz. 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: Fuentes, Gustavo A.. Universidad Autónoma Metropolitana; México
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
description Indium species dispersed on zeolites by high temperature treatment in air of indium-impregnated NH4-zeolites were characterized and related to the catalytic behavior of the solids in the selective catalytic reduction of NOx. NO-TPD, H2-TPR and CO-TPR experimental results show that higher temperatures increase the fraction of dispersed InO+ and InxOy phases. These species can oxidize nitric oxide to NO2 and are in greater amounts on the mordenite framework. X-ray indium mapping and TEM observations show a heterogeneous distribution of In 2O3 particles in solids with higher indium content. These oxides have smaller crystal size and a larger interaction in the framework of ZSM5. TGA-SDTA results point out that the thermal treatment simultaneously produces a solid-state indium exchange and a zeolite dehydroxylation, the exchange level being higher at larger indium contents. The catalytic behavior of the In-zeolites studied can be explained in terms of the type and proportion of indium species present according to the indium loading, thermal treatment and type of zeolite framework. For both zeolites, a higher temperature treatment extends the NOx conversion windows because there are larger amounts of active InO+. But the maximum deNOx activity is lower for In-mordenite due to the larger amounts of InxOy in this zeolite. This non-selective phase increases the methane conversion level. When the indium content is higher, the deNOx activity further increases, in line with a larger fraction of active InO+ species. Besides, the catalytic activity of the solids does not decrease despite the excess of indium in these samples under the form of In2O3 crystals.
publishDate 2011
dc.date.none.fl_str_mv 2011-11
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/11336/52875
Decolatti, Hernán Pablo; Martínez Hernández, Angel; Gutierrez, Laura Beatriz; Fuentes, Gustavo A.; Zamaro, Juan Manuel; Characterization of dispersed indium species obtained by thermal treatment of In-NH4-zeolites and their impact on the SCR of NOx; Elsevier Science; Microporous and Mesoporous Materials; 145; 1-3; 11-2011; 41-50
1387-1811
CONICET Digital
CONICET
url http://hdl.handle.net/11336/52875
identifier_str_mv Decolatti, Hernán Pablo; Martínez Hernández, Angel; Gutierrez, Laura Beatriz; Fuentes, Gustavo A.; Zamaro, Juan Manuel; Characterization of dispersed indium species obtained by thermal treatment of In-NH4-zeolites and their impact on the SCR of NOx; Elsevier Science; Microporous and Mesoporous Materials; 145; 1-3; 11-2011; 41-50
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.2011.04.018
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1387181111001843
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
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 12.885934

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