Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/19487
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dc.contributor.authorDuarte, Tiago A. G.pt
dc.contributor.authorPires, Sonia M. G.pt
dc.contributor.authorSantos, Isabel C. M. S.pt
dc.contributor.authorSimoes, Mario M. Q.pt
dc.contributor.authorNeves, M. Graca P. M. S.pt
dc.contributor.authorCavaleiro, Ana M. V.pt
dc.contributor.authorCavaleiro, Jose A. S.pt
dc.date.accessioned2017-12-07T19:14:24Z-
dc.date.issued2016pt
dc.identifier.issn2044-4753pt
dc.identifier.urihttp://hdl.handle.net/10773/19487-
dc.description.abstractThe tetrabutylammonium (TBA) salt of a Keggin-type polyoxometalate (POM), with the chemical formula TBA(4)H(2)[BW11Mn(H2O)O-39]center dot H2O, TBABW(11)Mn, was evaluated as a catalyst in the oxidation by hydrogen peroxide of several organosulfur compounds, namely benzothiophene (BT), 2-methylbenzothiophene (2-MBT), 3-methylbenzothiophene (3-MBT), dibenzothiophene (DBT), 4-methyldibenzothiophene (4-MDBT) and 4,6-diethyldibenzothiophene (4,6-DEDBT), in acetonitrile at room temperature. All compounds were oxidized to their corresponding sulfones with high conversion and selectivity. Following the excellent results achieved, the BW11Mn/H2O2 in CH3CN system was tested in the oxidation of model fuels (MFs) consisting of a mixture of BTs and DBTs in hexane (MF1 containing mainly BTs and MF2 containing predominantly DBTs). In both cases, the organosulfur compounds from the model fuels were fully converted into their corresponding sulfones. Envisaging the development of a promising desulfurization procedure, the extraction of sulfur compounds from MF2 was attempted after the catalytic oxidation process. More than 98 mol% was removed using an ethanol/H2O mixture.pt
dc.language.isoengpt
dc.publisherROYAL SOC CHEMISTRYpt
dc.relationinfo:eu-repo/grantAgreement/FCT/5876/147415/PTpt
dc.relationinfo:eu-repo/grantAgreement/FCT/5876/147332/PTpt
dc.relationinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F64354%2F2009/PTpt
dc.rightsrestrictedAccesspor
dc.subjectMETAL-SUBSTITUTED POLYOXOTUNGSTATESpt
dc.subjectPOLYOXOMETALATE-BASED MATERIALSpt
dc.subjectHYDROGEN-PEROXIDEpt
dc.subjectFUEL-OILpt
dc.subjectDESULFURIZATION PROCESSpt
dc.subjectDEEP DESULFURIZATIONpt
dc.subjectPHOSPHOTUNGSTIC ACIDpt
dc.subjectORGANIC FRAMEWORKpt
dc.subjectMODEL DIESELpt
dc.subjectLIQUID FUELSpt
dc.titleA Mn(III) polyoxotungstate in the oxidation of organosulfur compounds by H2O2 at room temperature: an environmentally safe catalytic approachpt
dc.typearticlept
dc.peerreviewedyespt
ua.distributioninternationalpt
degois.publication.firstPage3271pt
degois.publication.issue9pt
degois.publication.lastPage3278pt
degois.publication.titleCATALYSIS SCIENCE & TECHNOLOGYpt
degois.publication.volume6pt
dc.date.embargo10000-01-01-
dc.relation.publisherversion10.1039/c5cy01564bpt
dc.identifier.doi10.1039/c5cy01564bpt
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