Cobalt-based core@shell catalysts for guaiacol hydro conversion: use of salicylic acid as a sacrificial modulator of the interaction between the metal phase and the silica support

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dc.catalogadordfo
dc.contributor.authorAguirre Abarca, Diego Alejandro
dc.contributor.authorPazo Carballo, César Alexander
dc.contributor.authorLaurenti, Dorothee
dc.contributor.authorKarelovic, Alejandro
dc.contributor.authorDongil, Ana B.
dc.contributor.authorEscalona Burgos, Néstor Guillermo
dc.date.accessioned2024-08-19T20:39:23Z
dc.date.available2024-08-19T20:39:23Z
dc.date.issued2024
dc.description.abstractIn this work, four cobalt-based catalysts were obtained using two routes of preparation which differed in the expected degree of interaction with the silica matrix, using salicylic acid as a sacrificial modifier during the synthesis to modulate the interaction between the cobalt phase and the silica support due to its complexing properties. The catalysts were tested for the hydroconversion of guaiacol at 300 degrees C and 5 MPa of H2, with clear differences between each procedure. It is found that the synthesis route has a deep impact on the catalytic activity, with the catalysts prepared using a one-pot route being less active and having an increased selectivity to cyclohexane. In contrast, the ones prepared using a two-step process have increased yield towards phenol and cyclohexanol under the conditions used herein. Salicylic acid increases the catalytic activity in comparison to the untreated material for both families of materials, without changing the observed selectivity between samples with the same preparation., Salicylic acid as a cobalt-based catalyst modifier enhances the activity with increased selectivity towards cyclohexanol. This is linked to changes induced by the modifier over the cobalt surface, allowing for tuning of the catalytic activity.
dc.fuente.origenWOS
dc.identifier.doi10.1039/d4nj02689f
dc.identifier.eissn1369-9261
dc.identifier.issn1144-0546
dc.identifier.urihttps://doi.org/10.1039/d4nj02689f
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/87513
dc.identifier.wosidWOS:001274854200001
dc.information.autorucEscuela de Química; Aguirre Abarca Diego Alejandro; S/I; 1071088
dc.information.autorucEscuela de Química; Pazo Carballo Cesar Alexander; 0000-0002-0952-7672; 1092672
dc.information.autorucEscuela de Química; Escalona Burgos Nestor Guillermo; 0000-0002-2628-4609; 1021533
dc.issue.numero31
dc.language.isoen
dc.nota.accesocontenido completo
dc.pagina.final14066
dc.revistaNew Journal of Chemistry
dc.rightsacceso abierto
dc.rights.licenseAtribución-NoComercial 3.0 No Portada (CC BY-NC 3.0)
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/deed.es
dc.subject.ddc510
dc.subject.deweyMatemática física y químicaes_ES
dc.titleCobalt-based core@shell catalysts for guaiacol hydro conversion: use of salicylic acid as a sacrificial modulator of the interaction between the metal phase and the silica support
dc.typeartículo
sipa.codpersvinculados1071088
sipa.codpersvinculados1092672
sipa.codpersvinculados1021533
sipa.trazabilidadWOS;2024-08-03
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