Combined Operando XANES and NMR and ESR Spectroscopies for the Determination of VPO Dynamic States

Nanoscaled-VPO (vanadium phosphate oxide) catalysts have been prepared on an alumina support with the objective of obtaining crystallites of the active phase with a high surface-to-volume ratio. Since the catalysed reaction occurs at the surface, these nanoscaled catalysts allows studying surface sp...

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Autores: Guerrero-Pérez, M.O., Lapina, O.B., Rasmussen, Soren B., Bañares, Miguel A.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/359822
Acceso en línea:http://hdl.handle.net/10261/359822
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85160451604&doi=10.1007%2fs11244-023-01827-2&partnerID=40&md5=72db13a3bbfa96eac41c1583d0c2b69f
Access Level:acceso abierto
Palabra clave:Nanoscaled VPO catalysts
Operando XANES
51V
27Al
31P NMR
ESR
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spelling Combined Operando XANES and NMR and ESR Spectroscopies for the Determination of VPO Dynamic StatesGuerrero-Pérez, M.O.Lapina, O.B.Rasmussen, Soren B.Bañares, Miguel A.Nanoscaled VPO catalystsOperando XANES51V27Al31P NMRESRNanoscaled-VPO (vanadium phosphate oxide) catalysts have been prepared on an alumina support with the objective of obtaining crystallites of the active phase with a high surface-to-volume ratio. Since the catalysed reaction occurs at the surface, these nanoscaled catalysts allows studying surface species transformations with a minimized signal from the bulk dominion. The chemical environment and oxidation state of these species has been determined by a combination of NMR, ESR and XANES spectroscopies. The results have allowed to optimize V + P coverage and V/P molar ratio to minimize the concentration of isolated vanadium oxide species and maximize V4+ concentration. The distribution of phosphorus islands ordered and significantly distorted of tetra- and penta-coordinated aluminium sites of the catalytic support, thus shaping the catalytic material to an optimal structure for the desired partial oxidation reaction. © 2023, The Author(s).Dr. Ewelina Jankowiak is acknowledged for her help with experimental results. Spanish Ministry funded this study under project CTQ2014-57578-R. Authors thank D. Khabibulin for NMR and ESR spectra measurements. O. Lapina thanks the Ministry of Science and Higher Education of the Russian Federation within the governmental order for Boreskov Institute of Catalysis (project AAAA A21-121011390054-1) for partial support of this work. Open Access funding provided thanks to the CRUE-CSIC agreement with Springer NaturePeer reviewedSpringerMinisterio de Economía y Competitividad (España)Ministry of Science and Higher Education of the Russian FederationConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/359822https://www.scopus.com/inward/record.uri?eid=2-s2.0-85160451604&doi=10.1007%2fs11244-023-01827-2&partnerID=40&md5=72db13a3bbfa96eac41c1583d0c2b69freponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO//CTQ2014-57578-RTopics in Catalysishttps://doi.org/10.1007/s11244-023-01827-2Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3598222026-05-22T06:33:51Z
dc.title.none.fl_str_mv Combined Operando XANES and NMR and ESR Spectroscopies for the Determination of VPO Dynamic States
title Combined Operando XANES and NMR and ESR Spectroscopies for the Determination of VPO Dynamic States
spellingShingle Combined Operando XANES and NMR and ESR Spectroscopies for the Determination of VPO Dynamic States
Guerrero-Pérez, M.O.
Nanoscaled VPO catalysts
Operando XANES
51V
27Al
31P NMR
ESR
title_short Combined Operando XANES and NMR and ESR Spectroscopies for the Determination of VPO Dynamic States
title_full Combined Operando XANES and NMR and ESR Spectroscopies for the Determination of VPO Dynamic States
title_fullStr Combined Operando XANES and NMR and ESR Spectroscopies for the Determination of VPO Dynamic States
title_full_unstemmed Combined Operando XANES and NMR and ESR Spectroscopies for the Determination of VPO Dynamic States
title_sort Combined Operando XANES and NMR and ESR Spectroscopies for the Determination of VPO Dynamic States
dc.creator.none.fl_str_mv Guerrero-Pérez, M.O.
Lapina, O.B.
Rasmussen, Soren B.
Bañares, Miguel A.
author Guerrero-Pérez, M.O.
author_facet Guerrero-Pérez, M.O.
Lapina, O.B.
Rasmussen, Soren B.
Bañares, Miguel A.
author_role author
author2 Lapina, O.B.
Rasmussen, Soren B.
Bañares, Miguel A.
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Ministry of Science and Higher Education of the Russian Federation
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Nanoscaled VPO catalysts
Operando XANES
51V
27Al
31P NMR
ESR
topic Nanoscaled VPO catalysts
Operando XANES
51V
27Al
31P NMR
ESR
description Nanoscaled-VPO (vanadium phosphate oxide) catalysts have been prepared on an alumina support with the objective of obtaining crystallites of the active phase with a high surface-to-volume ratio. Since the catalysed reaction occurs at the surface, these nanoscaled catalysts allows studying surface species transformations with a minimized signal from the bulk dominion. The chemical environment and oxidation state of these species has been determined by a combination of NMR, ESR and XANES spectroscopies. The results have allowed to optimize V + P coverage and V/P molar ratio to minimize the concentration of isolated vanadium oxide species and maximize V4+ concentration. The distribution of phosphorus islands ordered and significantly distorted of tetra- and penta-coordinated aluminium sites of the catalytic support, thus shaping the catalytic material to an optimal structure for the desired partial oxidation reaction. © 2023, The Author(s).
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/359822
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85160451604&doi=10.1007%2fs11244-023-01827-2&partnerID=40&md5=72db13a3bbfa96eac41c1583d0c2b69f
url http://hdl.handle.net/10261/359822
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85160451604&doi=10.1007%2fs11244-023-01827-2&partnerID=40&md5=72db13a3bbfa96eac41c1583d0c2b69f
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO//CTQ2014-57578-R
Topics in Catalysis
https://doi.org/10.1007/s11244-023-01827-2
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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