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dc.contributor.author
Díaz, Juan
dc.contributor.author
Pizzio, Luis Rene
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dc.contributor.author
Pecchi, Gina
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Campos Figueroa, Cristian Hugo
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Azócar, Laura
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Briones, Rodrigo
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Romero, Romina
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Henríquez, Adolfo
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Gaigneaux, Eric M.
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Contreras, David
dc.date.available
2023-07-14T18:09:20Z
dc.date.issued
2022-04-30
dc.identifier.citation
Díaz, Juan; Pizzio, Luis Rene; Pecchi, Gina; Campos Figueroa, Cristian Hugo; Azócar, Laura; et al.; Tetrabutyl Ammonium Salts of Keggin-Type Vanadium-Substituted Phosphomolybdates and Phosphotungstates for Selective Aerobic Catalytic Oxidation of Benzyl Alcohol; Multidisciplinary Digital Publishing Institute; Catalysts; 12; 5; 30-4-2022; 1-20
dc.identifier.uri
http://hdl.handle.net/11336/204046
dc.description.abstract
A series of tetrabutyl ammonium (TBA) salts of V-included Keggin-type polyoxoanions with W (TBA4 PW11 V1 O40 and TBA5 PW10 V2 O40) and Mo (TBA4 PMo11 V1 O40 and TBA5 PMo10 V2 O40) as addenda atoms were prepared using a hydrothermal method. These synthesized materials were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), UV-Vis diffuse reflectance (DRS UV-Vis), thermogravimetric analysis (TGA), CHN elemental analysis (EA), inductively coupled plasma spectrometry (ICP-MS), and N2 physisorption techniques to assess their physicochemical/textural properties and correlate them with their catalytic performances. According to FT-IR and DRS UV-Vis, (PVX W(Mo)12−X O40)(3+X)− anions are the main species present in the TBA salts. Additionally, CHN-EA and ICP-MS revealed that the desired stoichiometry was obtained. Their catalytic activities in the liquid-phase aerobic oxidation of benzyl alcohol to benzaldehyde were studied at 5 bar of O2 at 170◦ C. Independently of the addenda atom nature, the catalytic activity increased with the number of V in the Keggin anion structure. For both series of catalysts, TBA salts of polyoxometalates with the highest V-substitution degree (TBA5 PMo10 V2 O40 and TBA5 PW10 V2 O40) showed higher activity. The maximum benzyl alcohol conversions obtained were 93% and 97% using (TBA)5 PMo10 V2 O40 and (TBA)5 PW10 V2 O40 as catalysts, respectively. In all the cases, the selectivity toward benzaldehyde was higher than 99%.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Multidisciplinary Digital Publishing Institute
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BENZYL ALCOHOL
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CATALYST
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GREEN OXIDANT
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KEGGIN PHOSPHOMOLYBDOVANADATE
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KEGGIN PHOSPHOTUNGSTOVANADATE
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SELECTIVE OXIDATION
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Otras Ingeniería Química
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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
Tetrabutyl Ammonium Salts of Keggin-Type Vanadium-Substituted Phosphomolybdates and Phosphotungstates for Selective Aerobic Catalytic Oxidation of Benzyl Alcohol
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-07-07T18:40:58Z
dc.identifier.eissn
2073-4344
dc.journal.volume
12
dc.journal.number
5
dc.journal.pagination
1-20
dc.journal.pais
Suiza
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dc.journal.ciudad
Basel
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Fil: Díaz, Juan. Universidad de Concepción; Chile. Millenium Nuclei On Catalytic Processes Towards Sustainable Chemistry; Chile
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Fil: Pizzio, Luis Rene. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
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Fil: Pecchi, Gina. Millenium Nuclei On Catalytic Processes Towards Sustainable Chemistry; Chile. Universidad de Concepción; Chile
dc.description.fil
Fil: Campos Figueroa, Cristian Hugo. Universidad de Concepción; Chile
dc.description.fil
Fil: Azócar, Laura. Universidad Catolica de la Santisima Concepcion; Chile. Millenium Nuclei On Catalytic Processes Towards Sustainable Chemistry; Chile
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Fil: Briones, Rodrigo. Centro de Investigación de Polímeros Avanzados; Chile
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Fil: Romero, Romina. Universidad de Concepción; Chile
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Fil: Henríquez, Adolfo. Universidad de Tarapacá; Chile
dc.description.fil
Fil: Gaigneaux, Eric M.. Université Catholique de Louvain; Bélgica
dc.description.fil
Fil: Contreras, David. Universidad de Concepción; Chile. Millenium Nuclei On Catalytic Processes Towards Sustainable Chemistry; Chile
dc.journal.title
Catalysts
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3390/catal12050507
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4344/12/5/507
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