Influence of Phase Composition of Bulk Tungsten Vanadium Oxides on the Aerobic Transformation of Methanol and Glycerol

[EN] A series of W-V-O catalysts with different m-WO3 and h-WO3 phase contents were hydrothermally synthesized by employing different tungsten, vanadium, and ammonium precursors and characterized by powder XRD, N-2 adsorption, SEM, X-ray energy-dispersive spectroscopy, thermogravimetric analysis, Ra...

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Authors: Delgado-Muñoz, Daniel, Chieregato, Alessandro, Rodríguez-Aguado, E., Rodriguez-Castellon, E., Soriano Rodríguez, Mª Dolores|||0000-0002-1799-895X, Ruiz-Rodríguez, Lidia, López Nieto, José Manuel|||0000-0002-6960-3219
Format: article
Publication Date:2018
Country:España
Institution:Universitat Politècnica de València (UPV)
Repository:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Language:English
OAI Identifier:oai:riunet.upv.es:10251/146160
Online Access:https://riunet.upv.es/handle/10251/146160
Access Level:Open access
Keyword:Heterogeneous catalysis
Oxydehydration
Hydrothermal synthesis
Vanadium
Tungsten
Oxidation
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spelling Influence of Phase Composition of Bulk Tungsten Vanadium Oxides on the Aerobic Transformation of Methanol and GlycerolDelgado-Muñoz, DanielChieregato, AlessandroRodríguez-Aguado, E.Rodriguez-Castellon, E.Soriano Rodríguez, Mª Dolores|||0000-0002-1799-895XRuiz-Rodríguez, LidiaLópez Nieto, José Manuel|||0000-0002-6960-3219Heterogeneous catalysisOxydehydrationHydrothermal synthesisVanadiumTungstenOxidation[EN] A series of W-V-O catalysts with different m-WO3 and h-WO3 phase contents were hydrothermally synthesized by employing different tungsten, vanadium, and ammonium precursors and characterized by powder XRD, N-2 adsorption, SEM, X-ray energy-dispersive spectroscopy, thermogravimetric analysis, Raman and FTIR spectroscopy, NH3 temperature programmed desorption, H-2 temperature-programmed reduction, and XPS. Finally, the acid/redox properties were analyzed by using aerobic transformation of methanol as a characterization reaction. A correlation between phase composition as well as acid and redox properties was observed, which were correlated to the catalytic performance of the title materials in a one-pot oxydehydration reaction of glycerol. The hexagonal tungsten bronze (h-WO3) phase shows a significantly higher concentration of acid sites than monoclinic m-WO3, so that the acid properties of W-V-O oxides are directly related to the presence of h-WO3 crystals. The presence of a higher concentration of acid sites in V-containing h-WO3 crystals is a key factor to achieve high selectivity to both acrolein and acrylic acid during one-pot glycerol oxydehydration. Also, V sites in h-WO3 show higher selectivity in the consecutive reaction (partial oxidation of acrolein to acrylic acid), while V sites in the m-WO3 phase fundamentally lead to the formation of carbon oxides.The authors acknowledge the DGICYT in Spain, CTQ2015-68951-C3-1-R and CTQ2015-68951-C3-3-R. Authors from ITQ also thank Project SEV-2016-0683 for financial support. D. D. thanks MINECO and Severo Ochoa Excellence Program for his fellowship (SVP-2014-068669). The research group of Prof. Fabrizio Cavani (University of Bologna, Italy)and Consorzio INSTM (Firenze) are gratefully acknowledged for a PhD grant to A. C. Authors also thank the Electron Microscopy Service of Universitat Politecnica de Valencia for their support.John Wiley & SonsInstituto Universitario Mixto de Tecnología QuímicaUniversità di BolognaMinisterio de Economía y CompetitividadConsorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, ItaliaRepositorio Institucional de la Universitat Politècnica de València Riunet20182018-03-14journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/146160reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 CTQ2015-68951-C3-3-R TRATAMIENTOS CATALITICOS AVANZADOS PARA LA VALORIZACION DE LA BIOMASA Y LA ELIMINACION DE RESIDUOS ASOCIADOSMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 SVP-2014-068669 SVP-2014-068669Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 CTQ2015-68951-C3-1-R TRATAMIENTOS CATALITICOS AVANZADOS PARA LA VALORIZACION DE LA BIOMASA Y LA ELIMINACION DE RESIDUOS ASOCIADOSMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 SEV-2016-0683open accesshttp://purl.org/coar/access_right/c_abf2Reserva de todos los derechoshttp://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/1461602026-06-13T07:49:27Z
dc.title.none.fl_str_mv Influence of Phase Composition of Bulk Tungsten Vanadium Oxides on the Aerobic Transformation of Methanol and Glycerol
title Influence of Phase Composition of Bulk Tungsten Vanadium Oxides on the Aerobic Transformation of Methanol and Glycerol
spellingShingle Influence of Phase Composition of Bulk Tungsten Vanadium Oxides on the Aerobic Transformation of Methanol and Glycerol
Delgado-Muñoz, Daniel
Heterogeneous catalysis
Oxydehydration
Hydrothermal synthesis
Vanadium
Tungsten
Oxidation
title_short Influence of Phase Composition of Bulk Tungsten Vanadium Oxides on the Aerobic Transformation of Methanol and Glycerol
title_full Influence of Phase Composition of Bulk Tungsten Vanadium Oxides on the Aerobic Transformation of Methanol and Glycerol
title_fullStr Influence of Phase Composition of Bulk Tungsten Vanadium Oxides on the Aerobic Transformation of Methanol and Glycerol
title_full_unstemmed Influence of Phase Composition of Bulk Tungsten Vanadium Oxides on the Aerobic Transformation of Methanol and Glycerol
title_sort Influence of Phase Composition of Bulk Tungsten Vanadium Oxides on the Aerobic Transformation of Methanol and Glycerol
dc.creator.none.fl_str_mv Delgado-Muñoz, Daniel
Chieregato, Alessandro
Rodríguez-Aguado, E.
Rodriguez-Castellon, E.
Soriano Rodríguez, Mª Dolores|||0000-0002-1799-895X
Ruiz-Rodríguez, Lidia
López Nieto, José Manuel|||0000-0002-6960-3219
author Delgado-Muñoz, Daniel
author_facet Delgado-Muñoz, Daniel
Chieregato, Alessandro
Rodríguez-Aguado, E.
Rodriguez-Castellon, E.
Soriano Rodríguez, Mª Dolores|||0000-0002-1799-895X
Ruiz-Rodríguez, Lidia
López Nieto, José Manuel|||0000-0002-6960-3219
author_role author
author2 Chieregato, Alessandro
Rodríguez-Aguado, E.
Rodriguez-Castellon, E.
Soriano Rodríguez, Mª Dolores|||0000-0002-1799-895X
Ruiz-Rodríguez, Lidia
López Nieto, José Manuel|||0000-0002-6960-3219
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Instituto Universitario Mixto de Tecnología Química
Università di Bologna
Ministerio de Economía y Competitividad
Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, Italia
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Heterogeneous catalysis
Oxydehydration
Hydrothermal synthesis
Vanadium
Tungsten
Oxidation
topic Heterogeneous catalysis
Oxydehydration
Hydrothermal synthesis
Vanadium
Tungsten
Oxidation
description [EN] A series of W-V-O catalysts with different m-WO3 and h-WO3 phase contents were hydrothermally synthesized by employing different tungsten, vanadium, and ammonium precursors and characterized by powder XRD, N-2 adsorption, SEM, X-ray energy-dispersive spectroscopy, thermogravimetric analysis, Raman and FTIR spectroscopy, NH3 temperature programmed desorption, H-2 temperature-programmed reduction, and XPS. Finally, the acid/redox properties were analyzed by using aerobic transformation of methanol as a characterization reaction. A correlation between phase composition as well as acid and redox properties was observed, which were correlated to the catalytic performance of the title materials in a one-pot oxydehydration reaction of glycerol. The hexagonal tungsten bronze (h-WO3) phase shows a significantly higher concentration of acid sites than monoclinic m-WO3, so that the acid properties of W-V-O oxides are directly related to the presence of h-WO3 crystals. The presence of a higher concentration of acid sites in V-containing h-WO3 crystals is a key factor to achieve high selectivity to both acrolein and acrylic acid during one-pot glycerol oxydehydration. Also, V sites in h-WO3 show higher selectivity in the consecutive reaction (partial oxidation of acrolein to acrylic acid), while V sites in the m-WO3 phase fundamentally lead to the formation of carbon oxides.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-03-14
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/146160
url https://riunet.upv.es/handle/10251/146160
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 CTQ2015-68951-C3-3-R TRATAMIENTOS CATALITICOS AVANZADOS PARA LA VALORIZACION DE LA BIOMASA Y LA ELIMINACION DE RESIDUOS ASOCIADOS
Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 SVP-2014-068669 SVP-2014-068669
Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 CTQ2015-68951-C3-1-R TRATAMIENTOS CATALITICOS AVANZADOS PARA LA VALORIZACION DE LA BIOMASA Y LA ELIMINACION DE RESIDUOS ASOCIADOS
Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 SEV-2016-0683
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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