Effect of vanadia loading on acidic and redox properties of VOx/TiO2 for the simultaneous abatement of PCDD/Fs and NOx

[EN] The effect of vanadia loading on the acidic and redox properties of VOx/TiO2 catalyst and their role in the simultaneous reduction of NO with NH3 and oxidation of o-DCB is studied. Catalyst samples with different proportions of VOx species, ranging from monomerics to V2O5 octahedral crystals ha...

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Autores: Gallastegui Villa, Miren, Aranzabal Maiztegi, Asier, González Marcos, María Pilar, Markaide Aiastui, Bittor Andoni, González Marcos, José Antonio, González Velasco, Juan Ramón
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/71701
Acceso en línea:http://hdl.handle.net/10810/71701
Access Level:acceso abierto
Palabra clave:VOx/TiO2
Acid
Redox
NO
o-dichlorobenzene
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spelling Effect of vanadia loading on acidic and redox properties of VOx/TiO2 for the simultaneous abatement of PCDD/Fs and NOxGallastegui Villa, MirenAranzabal Maiztegi, AsierGonzález Marcos, María PilarMarkaide Aiastui, Bittor AndoniGonzález Marcos, José AntonioGonzález Velasco, Juan RamónVOx/TiO2AcidRedoxNOo-dichlorobenzene[EN] The effect of vanadia loading on the acidic and redox properties of VOx/TiO2 catalyst and their role in the simultaneous reduction of NO with NH3 and oxidation of o-DCB is studied. Catalyst samples with different proportions of VOx species, ranging from monomerics to V2O5 octahedral crystals have been prepared. A relationship between VOx species and their acidic and redox properties was found. At low temperature, o-DCB is adsorbed mainly on Lewis sites, associated to monomeric species, but at high temperature, o-DCB and NH3 compete for Brønsted sites associated to polymeric species.[ES] Se estudia el efecto de la carga de vanadia sobre las propiedades ácidas y redox del catalizador VOx/TiO2 y su papel en la reducción simultánea de NO con NH3 y la oxidación de o-DCB. Se han preparado muestras de catalizador con diferentes proporciones de especies de VOx, desde monoméricas hasta cristales octaédricos de V2O5. Se ha encontrado una relación entre las especies VOx y sus propiedades ácidas y redox. A baja temperatura, el o-DCB se adsorbe principalmente en los sitios Lewis, asociados a las especies monoméricas, pero a alta temperatura, el o-DCB y el NH3 compiten por los sitios Brønsted asociados a las especies poliméricas.This research was funded by Basque Government though the Grant to Consolidated Research Groups (GIC-07/67-JT-450-07) and the SAIOTEK program (S-PE11UN074), by University of the Basque Country (UPV/EHU) through the UFI (UFI 11/39) and the Grant for the acquisition and renovation of scientific infrastructure (INF12/37) and by the Spanish Ministry of Economy and Competitiveness (CTM2012-31576 and CTQ2015-64616-P/MINECO/FEDER). One of the authors (M. Gallastegi-Villa) acknowledges also the Basque Government for the PhD Research Grant (BFI-2011-238).Elsevier202520252019info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/71701reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoIngléshttps://doi.org/10.1016/j.jiec.2019.09.034info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/© 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier under CC BY-NC-ND licenseoai:addi.ehu.eus:10810/717012026-06-18T09:23:17Z
dc.title.none.fl_str_mv Effect of vanadia loading on acidic and redox properties of VOx/TiO2 for the simultaneous abatement of PCDD/Fs and NOx
title Effect of vanadia loading on acidic and redox properties of VOx/TiO2 for the simultaneous abatement of PCDD/Fs and NOx
spellingShingle Effect of vanadia loading on acidic and redox properties of VOx/TiO2 for the simultaneous abatement of PCDD/Fs and NOx
Gallastegui Villa, Miren
VOx/TiO2
Acid
Redox
NO
o-dichlorobenzene
title_short Effect of vanadia loading on acidic and redox properties of VOx/TiO2 for the simultaneous abatement of PCDD/Fs and NOx
title_full Effect of vanadia loading on acidic and redox properties of VOx/TiO2 for the simultaneous abatement of PCDD/Fs and NOx
title_fullStr Effect of vanadia loading on acidic and redox properties of VOx/TiO2 for the simultaneous abatement of PCDD/Fs and NOx
title_full_unstemmed Effect of vanadia loading on acidic and redox properties of VOx/TiO2 for the simultaneous abatement of PCDD/Fs and NOx
title_sort Effect of vanadia loading on acidic and redox properties of VOx/TiO2 for the simultaneous abatement of PCDD/Fs and NOx
dc.creator.none.fl_str_mv Gallastegui Villa, Miren
Aranzabal Maiztegi, Asier
González Marcos, María Pilar
Markaide Aiastui, Bittor Andoni
González Marcos, José Antonio
González Velasco, Juan Ramón
author Gallastegui Villa, Miren
author_facet Gallastegui Villa, Miren
Aranzabal Maiztegi, Asier
González Marcos, María Pilar
Markaide Aiastui, Bittor Andoni
González Marcos, José Antonio
González Velasco, Juan Ramón
author_role author
author2 Aranzabal Maiztegi, Asier
González Marcos, María Pilar
Markaide Aiastui, Bittor Andoni
González Marcos, José Antonio
González Velasco, Juan Ramón
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv VOx/TiO2
Acid
Redox
NO
o-dichlorobenzene
topic VOx/TiO2
Acid
Redox
NO
o-dichlorobenzene
description [EN] The effect of vanadia loading on the acidic and redox properties of VOx/TiO2 catalyst and their role in the simultaneous reduction of NO with NH3 and oxidation of o-DCB is studied. Catalyst samples with different proportions of VOx species, ranging from monomerics to V2O5 octahedral crystals have been prepared. A relationship between VOx species and their acidic and redox properties was found. At low temperature, o-DCB is adsorbed mainly on Lewis sites, associated to monomeric species, but at high temperature, o-DCB and NH3 compete for Brønsted sites associated to polymeric species.
publishDate 2019
dc.date.none.fl_str_mv 2019
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/71701
url http://hdl.handle.net/10810/71701
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1016/j.jiec.2019.09.034
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411405704200192
score 15.811543

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