ZrO2-modified Al2O3-supported PdCu catalysts for the water denitrification reaction

Autores
Jaworski, María Angélica; Lick, Ileana Daniela; Siri, Guillermo Jorge; Casella, Monica Laura
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Monometallic Pd and bimetallic Pd?Cu catalysts supported on alumina, zirconia and ZrO2?Al2O3 mixed oxides of different composition were prepared and evaluated in the catalytic denitrification of water. The supports were characterized by X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-ray (SEM/EDX), NH3-adsorption thermogravimetry and specific surface areas measured by the BET method. XRD studies showed that the predominant phase in the ZrO2-modified Al2O3 supports is the metastable tetragonal phase (57%) of zirconia. SEM/EDX results indicated that ZrO2 crystals are distributed homogeneously on the supports. Temperature-programmed reduction (TPR) experiments carried out on bimetallic PdCu catalysts showed that Pd is well dispersed on the modified supports and that there is a strong interaction between both metals. The modification of Al2O3 by the addition of ZrO2 not only improved the activity but also the selectivity to N2 of the PdCu catalysts.
Fil: Jaworski, María Angélica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Fil: Lick, Ileana Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Fil: Siri, Guillermo Jorge. 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: Casella, Monica Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Materia
Nitrate
Nitrite
Water Denitrification
Pdcu Catalysts
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/5738
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling ZrO2-modified Al2O3-supported PdCu catalysts for the water denitrification reactionJaworski, María AngélicaLick, Ileana DanielaSiri, Guillermo JorgeCasella, Monica LauraNitrateNitriteWater DenitrificationPdcu Catalystshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Monometallic Pd and bimetallic Pd?Cu catalysts supported on alumina, zirconia and ZrO2?Al2O3 mixed oxides of different composition were prepared and evaluated in the catalytic denitrification of water. The supports were characterized by X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-ray (SEM/EDX), NH3-adsorption thermogravimetry and specific surface areas measured by the BET method. XRD studies showed that the predominant phase in the ZrO2-modified Al2O3 supports is the metastable tetragonal phase (57%) of zirconia. SEM/EDX results indicated that ZrO2 crystals are distributed homogeneously on the supports. Temperature-programmed reduction (TPR) experiments carried out on bimetallic PdCu catalysts showed that Pd is well dispersed on the modified supports and that there is a strong interaction between both metals. The modification of Al2O3 by the addition of ZrO2 not only improved the activity but also the selectivity to N2 of the PdCu catalysts.Fil: Jaworski, María Angélica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; ArgentinaFil: Lick, Ileana Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; ArgentinaFil: Siri, Guillermo Jorge. 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: Casella, Monica Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; ArgentinaElsevier2014-03-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5738Jaworski, María Angélica; Lick, Ileana Daniela; Siri, Guillermo Jorge; Casella, Monica Laura; ZrO2-modified Al2O3-supported PdCu catalysts for the water denitrification reaction; Elsevier; Applied Catalysis B: Environmental; 156-157; 12-3-2014; 53-610926-3373enginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcatb.2014.02.048info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926337314001556info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:50:51Zoai:ri.conicet.gov.ar:11336/5738instacron: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 09:50:51.7CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv ZrO2-modified Al2O3-supported PdCu catalysts for the water denitrification reaction
title ZrO2-modified Al2O3-supported PdCu catalysts for the water denitrification reaction
spellingShingle ZrO2-modified Al2O3-supported PdCu catalysts for the water denitrification reaction
Jaworski, María Angélica
Nitrate
Nitrite
Water Denitrification
Pdcu Catalysts
title_short ZrO2-modified Al2O3-supported PdCu catalysts for the water denitrification reaction
title_full ZrO2-modified Al2O3-supported PdCu catalysts for the water denitrification reaction
title_fullStr ZrO2-modified Al2O3-supported PdCu catalysts for the water denitrification reaction
title_full_unstemmed ZrO2-modified Al2O3-supported PdCu catalysts for the water denitrification reaction
title_sort ZrO2-modified Al2O3-supported PdCu catalysts for the water denitrification reaction
dc.creator.none.fl_str_mv Jaworski, María Angélica
Lick, Ileana Daniela
Siri, Guillermo Jorge
Casella, Monica Laura
author Jaworski, María Angélica
author_facet Jaworski, María Angélica
Lick, Ileana Daniela
Siri, Guillermo Jorge
Casella, Monica Laura
author_role author
author2 Lick, Ileana Daniela
Siri, Guillermo Jorge
Casella, Monica Laura
author2_role author
author
author
dc.subject.none.fl_str_mv Nitrate
Nitrite
Water Denitrification
Pdcu Catalysts
topic Nitrate
Nitrite
Water Denitrification
Pdcu Catalysts
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Monometallic Pd and bimetallic Pd?Cu catalysts supported on alumina, zirconia and ZrO2?Al2O3 mixed oxides of different composition were prepared and evaluated in the catalytic denitrification of water. The supports were characterized by X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-ray (SEM/EDX), NH3-adsorption thermogravimetry and specific surface areas measured by the BET method. XRD studies showed that the predominant phase in the ZrO2-modified Al2O3 supports is the metastable tetragonal phase (57%) of zirconia. SEM/EDX results indicated that ZrO2 crystals are distributed homogeneously on the supports. Temperature-programmed reduction (TPR) experiments carried out on bimetallic PdCu catalysts showed that Pd is well dispersed on the modified supports and that there is a strong interaction between both metals. The modification of Al2O3 by the addition of ZrO2 not only improved the activity but also the selectivity to N2 of the PdCu catalysts.
Fil: Jaworski, María Angélica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Fil: Lick, Ileana Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
Fil: Siri, Guillermo Jorge. 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: Casella, Monica Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina
description Monometallic Pd and bimetallic Pd?Cu catalysts supported on alumina, zirconia and ZrO2?Al2O3 mixed oxides of different composition were prepared and evaluated in the catalytic denitrification of water. The supports were characterized by X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-ray (SEM/EDX), NH3-adsorption thermogravimetry and specific surface areas measured by the BET method. XRD studies showed that the predominant phase in the ZrO2-modified Al2O3 supports is the metastable tetragonal phase (57%) of zirconia. SEM/EDX results indicated that ZrO2 crystals are distributed homogeneously on the supports. Temperature-programmed reduction (TPR) experiments carried out on bimetallic PdCu catalysts showed that Pd is well dispersed on the modified supports and that there is a strong interaction between both metals. The modification of Al2O3 by the addition of ZrO2 not only improved the activity but also the selectivity to N2 of the PdCu catalysts.
publishDate 2014
dc.date.none.fl_str_mv 2014-03-12
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/11336/5738
Jaworski, María Angélica; Lick, Ileana Daniela; Siri, Guillermo Jorge; Casella, Monica Laura; ZrO2-modified Al2O3-supported PdCu catalysts for the water denitrification reaction; Elsevier; Applied Catalysis B: Environmental; 156-157; 12-3-2014; 53-61
0926-3373
url http://hdl.handle.net/11336/5738
identifier_str_mv Jaworski, María Angélica; Lick, Ileana Daniela; Siri, Guillermo Jorge; Casella, Monica Laura; ZrO2-modified Al2O3-supported PdCu catalysts for the water denitrification reaction; Elsevier; Applied Catalysis B: Environmental; 156-157; 12-3-2014; 53-61
0926-3373
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcatb.2014.02.048
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926337314001556
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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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score 13.13397

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