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Metal solution precursors: their role during the synthesis of MoVTeNb mixed oxide catalysts

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Metal solution precursors: their role during the synthesis of MoVTeNb mixed oxide catalysts

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dc.contributor.author Sánchez-Valente, Jaime es_ES
dc.contributor.author Maya-Flores, E. es_ES
dc.contributor.author Armendariz-Herrera, H. es_ES
dc.contributor.author Quintana-Solorzano, R. es_ES
dc.contributor.author López Nieto, José Manuel es_ES
dc.date.accessioned 2020-07-08T03:32:41Z
dc.date.available 2020-07-08T03:32:41Z
dc.date.issued 2018-06-21 es_ES
dc.identifier.issn 2044-4753 es_ES
dc.identifier.uri http://hdl.handle.net/10251/147640
dc.description.abstract [EN] Synthesized via the slurry method and activated at high temperature (873 K), MoVTeNb multimetallic mixed oxides are applied to catalyze the oxidative dehydrogenation of ethane to ethylene (ODHE). Mixed oxides typically contain M1 and M2 crystalline phases, the relative contribution of these phases and the respective catalytic behaviour being notably influenced by the preparation conditions of the metallic aqueous solution precursor, given the complexity of the chemical interactions of metal species in solution. Thus, detailed in situ UV-vis and Raman studies of the chemical species formed in solution during each step of the synthetic procedure are presented herein. The main role of vanadium is to form decavanadate ions, which interact with Mo species to generate an Anderson-type structure. When niobium oxalate solution is added into the MoVTe solution, a yellow-coloured gel is immediately formed due to a common ion effect. When liquid and gel phases are separated, the M1 crystalline phase is produced solely from the gel phase. Attention is also devoted to the influence and role of each metal cation (Mo, V, Te and Nb) on the formation of the active M1 crystalline phase and the catalytic behaviour in the ODHE. The catalyst constituted mostly of M1 crystalline phase is able to convert 45% of the fed ethane, with a selectivity to ethylene of around 90%. es_ES
dc.description.sponsorship This work was financially supported by the Instituto Mexicano del Petroleo (IMP) Project D.61010. EMF thanks CONACyT Mexico and IMP. JMLN thanks DGICYT in Spain (Project CTQ2015-68951-C3-1-R). es_ES
dc.language Inglés es_ES
dc.publisher The Royal Society of Chemistry es_ES
dc.relation.ispartof Catalysis Science & Technology es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Ethane ODH es_ES
dc.subject Synthesis of Mo-V-Te-Nb-O es_ES
dc.subject Mixed oxide catalysts es_ES
dc.title Metal solution precursors: their role during the synthesis of MoVTeNb mixed oxide catalysts es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1039/c8cy00750k es_ES
dc.relation.projectID info:eu-repo/grantAgreement/IMP//D.61010/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//CTQ2015-68951-C3-1-R/ES/TRATAMIENTOS CATALITICOS AVANZADOS PARA LA VALORIZACION DE LA BIOMASA Y LA ELIMINACION DE RESIDUOS ASOCIADOS/ es_ES
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Sánchez-Valente, J.; Maya-Flores, E.; Armendariz-Herrera, H.; Quintana-Solorzano, R.; López Nieto, JM. (2018). Metal solution precursors: their role during the synthesis of MoVTeNb mixed oxide catalysts. Catalysis Science & Technology. 8(12):3123-3132. https://doi.org/10.1039/c8cy00750k es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1039/c8cy00750k es_ES
dc.description.upvformatpinicio 3123 es_ES
dc.description.upvformatpfin 3132 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 8 es_ES
dc.description.issue 12 es_ES
dc.relation.pasarela S\383057 es_ES
dc.contributor.funder Instituto Mexicano del Petróleo es_ES
dc.contributor.funder Ministerio de Economía y Competitividad es_ES
dc.contributor.funder Consejo Nacional de Ciencia y Tecnología, México es_ES
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