Catalytic evaluation of MOF-808 with metallic centers of Zr(IV), Hf(IV) and Ce(IV) in the acetalization of benzaldehyde with methanol

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dc.catalogadorpau
dc.contributor.authorArellano Valderrama, Yazmin Anay
dc.contributor.authorPazo Carballo, César Alexander
dc.contributor.authorRoa, Vanesa
dc.contributor.authorHidalgo-Rosa, Yoan
dc.contributor.authorZarate, Ximena
dc.contributor.authorLlanos, Jaime
dc.contributor.authorEscalona Burgos, Nestor Guillermo
dc.contributor.authorSchott, Eduardo
dc.date.accessioned2025-01-03T18:06:10Z
dc.date.available2025-01-03T18:06:10Z
dc.date.issued2024
dc.description.abstractIn the context of climate change, it is of utmost importance to replace the use of fossil fuels as raw material in areas of industrial interest, for example, in the production of chemical inputs. In this context, a viable option is biomass, since by subjecting it to chemical processes such as pyrolysis, it is possible to obtain platform molecules that are the basis for the generation of value-added chemical products. Acetals are molecules obtained from biomass derIVatIVes, which have various applications in cosmetic chemistry, in the pharmaceutical industry as intermediates or final compounds, food additIVes, among others. Different catalysts have been used in the acetalization reaction, including MOFs, which have the advantage of being porous materials with high surface area values. The large surface area translates into a greater number of catalytically actIVe sites available for the reaction. Among the MOFs that have been used for this purpose is MOF-808, which is characterized by having a lower number of ligands attached to its metal cluster, therefore, it has a greater exposure of the metals that make up its structure. In this context, the work carried out studied the catalytic performance of MOF-808 when its Zr(IV) metal centers are replaced by Hf(IV) and Ce(IV) atoms in the acetalization reaction of benzaldehyde with methanol. The MOFs obtained by solvothermal synthesis were characterized by powder X-ray diffraction, N-2 adsorption and desorption, FT-IR spectroscopy, acid-base potentiometric titration, XPS and thermogravimetric analysis. The results of the catalysis indicate that the MOF with the best performance was MOF-808-Ce, which achieved conversions greater than 80% in a period of ten minutes. MOF-808-Ce exhibits a higher number of defects and therefore a higher availability of catalytic sites for the reaction to occur, which explains the better performance. Finally, the performance of MOF-808 in the acetalization of benzaldehyde with methanol was also supported by density functional theory (DFT) calculations.
dc.description.funderFONDECYT No. 1231194, No. 1241917 and ANID Postdoctoral No. 3230141
dc.description.funderANID Millennium Science Initiative Program NCN21_90
dc.description.funderANID/FONDAP No. 1523A0006 ACT 210057
dc.format.extent10 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1039/d4dt01959h
dc.identifier.eissn1477-9234
dc.identifier.issn1477-9226
dc.identifier.urihttps://doi.org/10.1039/d4dt01959h
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/89504
dc.identifier.wosidWoS_Id: 001322353100001
dc.information.autorucEscuela de Química; Arellano Valderrama, Yazmin Anay; S/I; 1046831
dc.information.autorucEscuela de Química; Pazo Carballo, César Alexander; 0000-0002-0952-7672; 1092672
dc.information.autorucEscuela de Química; Escalona Burgos, Nestor Guillermo; 0000-0002-2628-4609; 1021533
dc.language.isoen
dc.nota.accesocontenido completo
dc.pagina.final16406
dc.pagina.inicio16397
dc.publisherRoyal Society Chemistry
dc.revistaDalton Transactions
dc.rightsacceso abierto
dc.rights.licenseAttribution-NonCommercial 3.0 Unported
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/
dc.subject.ddc510
dc.subject.deweyMatemática física y químicaes_ES
dc.titleCatalytic evaluation of MOF-808 with metallic centers of Zr(IV), Hf(IV) and Ce(IV) in the acetalization of benzaldehyde with methanol
dc.typeartículo
sipa.codpersvinculados1046831
sipa.codpersvinculados1092672
sipa.codpersvinculados1021533
sipa.trazabilidadWoS;2024-10-05
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