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dc.contributor.author
Possato, Luiz G.
dc.contributor.author
Acevedo, Mauro Dino
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dc.contributor.author
Padro, Cristina
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dc.contributor.author
Briois, Valérie
dc.contributor.author
Passos, Aline R.
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Pulcinelli, Sandra H.
dc.contributor.author
Santilli, Celso V.
dc.contributor.author
Martins, Leandro
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dc.date.available
2023-08-22T18:48:44Z
dc.date.issued
2020-02
dc.identifier.citation
Possato, Luiz G.; Acevedo, Mauro Dino; Padro, Cristina; Briois, Valérie; Passos, Aline R.; et al.; Activation of Mo and V oxides supported on ZSM-5 zeolite catalysts followed by in situ XAS and XRD and their uses in oxydehydration of glycerol; Elsevier; Molecular Catalysis; 481; 110158; 2-2020; 1-9
dc.identifier.issn
2468-8231
dc.identifier.uri
http://hdl.handle.net/11336/208950
dc.description.abstract
This paper describes the activation and catalytic performance of a multifunctional catalyst consisting of mixed oxides of vanadium and molybdenum supported on an acidic ZSM-5 zeolite. The zeolite was wet-impregnated with an aqueous solution containing a mixture of NH4VO3 and (NH4)6Mo7O24 precursors at a V/(Mo+V) molar ratio of 0.6. Evolution of the phases during activation (by calcination under 20% O2/He) was followed by synchrotron X-ray diffraction (XRD), but detection of mixed oxides of MoxVyOz was difficult, due to the high degree of dispersion on the zeolite surface. On the other hand, X-ray absorption spectroscopy (XAS) performed simultaneously at the Mo and V K-edges enabled confirmation of formation of the MoV2O8 phase on the acidic ZSM-5 zeolite. The combination of the MoV2O8 phase and the zeolite acid sites produced a highly active catalyst for gas phase glycerol dehydration-oxidation coupled reactions in which acrylic acid was the main product. The multifunctional catalyst presented only 6% of deactivation during a period of 8 h under glycerol stream, while the activities of the bulk mixed oxide and the pure ZSM-5 zeolite decreased by almost 20 and 31%, respectively.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
ZEOLITES
dc.subject
GLYCEROL
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ACRYLIC ACID
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MIXED OXIDES
dc.subject.classification
Ingeniería de Procesos Químicos
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dc.subject.classification
Ingeniería Química
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Activation of Mo and V oxides supported on ZSM-5 zeolite catalysts followed by in situ XAS and XRD and their uses in oxydehydration of glycerol
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-07-07T20:51:46Z
dc.journal.volume
481
dc.journal.number
110158
dc.journal.pagination
1-9
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Possato, Luiz G.. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
dc.description.fil
Fil: Acevedo, Mauro Dino. Universidad Nacional del Chaco Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Padro, Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
dc.description.fil
Fil: Briois, Valérie. Synchrotron SOLEIL; Francia
dc.description.fil
Fil: Passos, Aline R.. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
dc.description.fil
Fil: Pulcinelli, Sandra H.. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
dc.description.fil
Fil: Santilli, Celso V.. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
dc.description.fil
Fil: Martins, Leandro. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
dc.journal.title
Molecular Catalysis
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2468823118302980
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.mcat.2018.07.029
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