dc.creatorFrenzel, Romina Alejandra
dc.creatorPalermo, Valeria
dc.creatorSathicq, Angel Gabriel
dc.creatorElsharif, Asma M.
dc.creatorLuque, Rafael
dc.creatorPizzio, Luis Rene
dc.creatorRomanelli, Gustavo Pablo
dc.date.accessioned2022-08-10T12:14:33Z
dc.date.accessioned2022-10-15T03:22:31Z
dc.date.available2022-08-10T12:14:33Z
dc.date.available2022-10-15T03:22:31Z
dc.date.created2022-08-10T12:14:33Z
dc.date.issued2021-01
dc.identifierFrenzel, Romina Alejandra; Palermo, Valeria; Sathicq, Angel Gabriel; Elsharif, Asma M.; Luque, Rafael; et al.; A green and reusable catalytic system based on silicopolyoxotungstovanadates incorporated in a polymeric material for the selective oxidation of sulfides to sulfones; Elsevier Science; Microporous and Mesoporous Materials; 310; 1-2021; 1-12
dc.identifier1387-1811
dc.identifierhttp://hdl.handle.net/11336/164875
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4339607
dc.description.abstractTwo vanadium-containing Keggin silicopolyoxotungsto compounds K5SiVW11O40 and K6SiV2W10O40 were synthesized and characterized. They were incorporated in a superporous hydrogel constitute by prop-2-enamide and propenoic acid as initial monomers and bis-acrylamide as cross-linking moiety. Materials were characterized by several techniques. According to FTIR and 51V MAS-NMR, the (SiVxW12-xO40)(4+x)- anions are the main species present in the hybrid materials. Additionally, they do not decompose during the preparation of the composite. XRD and SEM-EDX results suggest that (SiVxW12-xO40)(4+x)- anions were well dispersed in the support or present as amorphous phases. These materials were evaluated as catalysts in the oxidation of sulfides to sulfones, using an eco-friendly oxidant and mild reaction conditions. The hybrid materials with higher content of the heteropoly compound displayed a remarkable catalytic behaviour in the oxidation of diphenyl sulfide. Materials also exhibited a stable catalytic performance through consecutive reuses. Optimum reaction parameters established were subsequently translated to the oxidation of a sulfide of interest (dapsone) due to its pharmacological activities.
dc.languageeng
dc.publisherElsevier Science
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.micromeso.2020.110584
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectDAPSONE
dc.subjectKEGGIN SILICOPOLYOXOTUNGSTO COMPOUNDS
dc.subjectSULFIDE OXIDATION
dc.subjectSUPERABSORBENT HYDROGEL
dc.titleA green and reusable catalytic system based on silicopolyoxotungstovanadates incorporated in a polymeric material for the selective oxidation of sulfides to sulfones
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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