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Straightforward approach to promote an efficient reutilization of POM@MOF catalysts in oxidative desulfurization processes

2026-02-01Artigo científico Acesso aberto
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dc.contributor.authorFaria, Rui G.
dc.contributor.authorSoares, O. Salomé G. P.
dc.contributor.authorAlmeida, Pedro L.
dc.contributor.authorBalula, Salete S.
dc.contributor.authorCunha-Silva, Luís
dc.contributor.institutionCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
dc.contributor.pblElsevier Science B.V., Inc
dc.date.accessioned2026-03-13T11:29:01Z
dc.date.available2026-03-13T11:29:01Z
dc.date.issued2026-02-01
dc.descriptionPublisher Copyright: © 2025 The Authors.
dc.description.abstractA straightforward innovative strategy to improve the reusability of a polyoxometalate/porous metal-organic framework (POM/MOF) heterogeneous catalysts based in suitable structural modification by thermal treatment is reported in this manuscript for the first time. The incorporation of the active Keggin-type phosphomolybdate anion ([PMo12O40]3-, PMo12) into the porous Zeolitic Imidazolate Framework (ZIF-8) led to the formation of the composite material PMo12@ZIF-8. This material exhibited catalytic activity during the first use but could not be reused in subsequent oxidative desulfurization (ODS) cycles of a multicomponent model diesel (2000 ppm S). Remarkably, an appropriate post-synthetic thermal treatment at temperatures slightly below the structural collapse point (400 °C and 500 °C), as well as at 550 °C, enabled efficient reutilization of the material. This modified material was reutilized for at least five consecutive ODS cycles without any observable loss in catalytic performance. These results confirm the integrity and durability of the heterogeneous catalyst. The methodology here developed is a reference that can be adapted to improve the robustness of active POM@MOF based catalyst, increasing the viability of these highly active materials for industrial application.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent9
dc.format.extent6654102
dc.identifier.doi10.1016/j.micromeso.2025.113923
dc.identifier.issn1387-1811
dc.identifier.otherPURE: 157059820
dc.identifier.otherPURE UUID: 0e3db7ba-4e87-481a-82e8-93d89d86779c
dc.identifier.otherScopus: 105021229881
dc.identifier.urihttp://hdl.handle.net/10362/201377
dc.identifier.urlhttps://www.scopus.com/pages/publications/105021229881
dc.language.isoeng
dc.peerreviewedyes
dc.subjectCatalyst reutilization
dc.subjectExtractive catalytic oxidative desulfurization
dc.subjectNanocomposite material
dc.subjectPolyoxometalates
dc.subjectZeolitic imidazolate frameworks
dc.subjectGeneral Chemistry
dc.subjectGeneral Materials Science
dc.subjectCondensed Matter Physics
dc.subjectMechanics of Materials
dc.titleStraightforward approach to promote an efficient reutilization of POM@MOF catalysts in oxidative desulfurization processesen
dc.typejournal article
degois.publication.firstPage1
degois.publication.lastPage9
degois.publication.titleMicroporous and Mesoporous Materials
degois.publication.volume401
dspace.entity.typePublication
rcaap.rightsopenAccess

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