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Acid properties of organosiliceous hybrid materials based on pendant (fluoro)aryl-sulfonic groups through a spectroscopic study with probe molecules

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Acid properties of organosiliceous hybrid materials based on pendant (fluoro)aryl-sulfonic groups through a spectroscopic study with probe molecules

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dc.contributor.author Erigoni, Andrea es_ES
dc.contributor.author Paul, Geo es_ES
dc.contributor.author Meazza, Marta es_ES
dc.contributor.author Hernández Soto, María Consuelo es_ES
dc.contributor.author Miletto, Ivana es_ES
dc.contributor.author Rios, Ramon es_ES
dc.contributor.author Segarra-Almela, Mª De La Candelaria es_ES
dc.contributor.author Marchese, Leonardo es_ES
dc.contributor.author Raja, Robert es_ES
dc.contributor.author Rey Garcia, Fernando es_ES
dc.contributor.author Gianotti, Enrica es_ES
dc.contributor.author DÍAZ MORALES, URBANO MANUEL es_ES
dc.date.accessioned 2020-11-11T04:31:58Z
dc.date.available 2020-11-11T04:31:58Z
dc.date.issued 2019-11-21 es_ES
dc.identifier.issn 2044-4753 es_ES
dc.identifier.uri http://hdl.handle.net/10251/154797
dc.description.abstract [EN] Two different heterogeneous catalysts carrying aryl-sulfonic moieties, in which the aromatic ring was either fluorinated or not, were successfully synthesized. The multi-step synthetic approaches implemented involved the synthesis of the silyl-derivative, template-free one-pot co-condensation (at low temperature and neutral pH) and tethering reaction. A multi-technique approach was implemented to characterize the hybrid organic-inorganic catalysts involving TGA, N-2 physisorption analysis, FTIR spectroscopy, and ss MAS NMR (H-1, C-13, Si-29) spectroscopy. Specifically, the acidity of the organosiliceous hybrid materials was studied through the adsorption of probe molecules (i.e. CO at 77 K and NH3 and TMPO at room temperature) and a combination of FTIR and ss MAS NMR spectroscopy. The catalytic activity of the two hybrids was tested in the acetal formation reaction between benzaldehyde and ethylene glycol. Preliminary results indicated superior performances for the fluoro-aryl-sulfonic acid, compared to the non-fluorinated sample. The findings hereby reported open new avenues for the design of heterogeneous sulfonic acids with superior reactivity in acid-catalyzed reactions. Moreover, through the implementation of spectroscopic studies, using probe molecules, it was possible to investigate in detail the acidic properties of hybrid organosiliceous materials. es_ES
dc.description.sponsorship AE acknowledge "la Caixa" foundation for the PhD scholarship. The authors are grateful for financial support from the European Union by the MULTY2HYCAT EU-Horizon 2020 funded project under grant agreement no. 720783. 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.title Acid properties of organosiliceous hybrid materials based on pendant (fluoro)aryl-sulfonic groups through a spectroscopic study with probe molecules es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1039/c9cy01609k es_ES
dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/720783/EU/MULTI-site organic-inorganic HYbrid CATalysts for MULTI-step chemical processes/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química es_ES
dc.description.bibliographicCitation Erigoni, A.; Paul, G.; Meazza, M.; Hernández Soto, MC.; Miletto, I.; Rios, R.; Segarra-Almela, MDLC.... (2019). Acid properties of organosiliceous hybrid materials based on pendant (fluoro)aryl-sulfonic groups through a spectroscopic study with probe molecules. Catalysis Science & Technology. 9(22):6308-6317. https://doi.org/10.1039/c9cy01609k es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1039/c9cy01609k es_ES
dc.description.upvformatpinicio 6308 es_ES
dc.description.upvformatpfin 6317 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 9 es_ES
dc.description.issue 22 es_ES
dc.relation.pasarela S\407659 es_ES
dc.contributor.funder Fundació Bancària Caixa d'Estalvis i Pensions de Barcelona es_ES


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