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First-row-transition ion metals(II)-EDTA functionalized magnetic nanoparticles as catalysts for solvent-free microwave-induced oxidation of alcohols

2017-11Journal article Restricted access
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dc.contributor.authorMartins, Nuno
dc.contributor.authorMartins, Luisa
dc.contributor.authorAmorim, Carlos O.
dc.contributor.authorAmaral, Vitor
dc.contributor.authorPombeiro, Armando
dc.date.accessioned2019-03-18T11:59:17Z
dc.date.available2019-03-18T11:59:17Z
dc.date.issued2017-11
dc.description.abstractA series of first-row transition-metals combined with ethylenediamine tetraacetic acid (EDTA), as metal-based N,O-chelating ligands, at the surface of ferrite magnetic nanoparticles (MNPs) was prepared by a co-precipitation method. Those EDTA functionalized MNPs with general formula Fe3O4@EDTA-M2+ [M = Mn2+ (1), Fe2+ (2), Co2+ (3), Ni2+ (4), Cu2+ (5) or Zn2+ (6)] were characterized by FTIR (Fourier Transform Infrared) spectroscopy, powder XRD (X-ray Diffraction), SEM (Scanning Electron Microscope), EDS (Energy Dispersive Spectrometer), VSM (Vibrating Sample Magnetometer) and TGA (Thermal Gravity Analysis). The application of the magnetic NPs towards the microwave-assisted oxidation of several alcohol substrates in a solvent-free medium was evaluated. The influence of reaction parameters such as temperature, time, type of oxidant, and presence of organic radicals was investigated. This study demonstrates that these MNPs can act as efficient catalysts for the conversion of alcohols to the corresponding ketones or aldehydes with high selectivity and yields up to 99% after 2 h of reaction at 110 degrees C using t-BuOOH as oxidant. Moreover, they have the advantage of being magnetically recoverable catalysts that can be easily recycled in following runs.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMARTINS, Nuno M. R.; [et al] – First-row-transition ion metals(II)-EDTA functionalized magnetic nanoparticles as catalysts for solvent-free microwave-induced oxidation of alcohols. Catalysts. ISSN 2073-4344. Vol. 7, N.º 11 (2017), pp. 1-20pt_PT
dc.identifier.doi10.3390/catal7110335pt_PT
dc.identifier.issn2073-4344
dc.identifier.urihttp://hdl.handle.net/10400.21/9728
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationPTDC/QEQ-ERQ/1648/2014 - Foundation for Science and Technology (FCT), Portugalpt_PT
dc.relationPTDC/QEQ-QIN/3967/2014 - Foundation for Science and Technology (FCT), Portugalpt_PT
dc.relationSFRH/BD/52371/2013 - FCTpt_PT
dc.relationPOCI-01-0145-FEDER-007679 - Project CICECO-Aveiro Institute of Materials (FCT) - FCT/MECpt_PT
dc.subjectAlcohol oxidationpt_PT
dc.subjectFerrite magnetic nanoparticlespt_PT
dc.subjectTransition metalspt_PT
dc.subjectMagnetic recoverypt_PT
dc.subjectFunctionalized nanoparticlespt_PT
dc.subjectMicrowave irradiationpt_PT
dc.subjectSolvent-freept_PT
dc.titleFirst-row-transition ion metals(II)-EDTA functionalized magnetic nanoparticles as catalysts for solvent-free microwave-induced oxidation of alcoholspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F00100%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FCTM%2F50011%2F2013/PT
oaire.citation.endPage20pt_PT
oaire.citation.issue11pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleCatalystspt_PT
oaire.citation.volume7pt_PT
oaire.fundingStream5876
oaire.fundingStream5876
person.familyNameMartins
person.familyNameMartins
person.familyNamede Oliveira Amorim
person.familyNameAmaral
person.familyNamePombeiro
person.givenNameNuno
person.givenNameLuisa
person.givenNameCarlos
person.givenNameVitor
person.givenNameArmando
person.identifier637885
person.identifier.ciencia-idE218-E297-A4EA
person.identifier.ciencia-idD919-0978-F1B7
person.identifier.ciencia-idE319-73AD-EE01
person.identifier.ciencia-id8311-38FA-CEFB
person.identifier.orcid0000-0001-7787-6041
person.identifier.orcid0000-0002-5403-9352
person.identifier.orcid0000-0003-4148-4374
person.identifier.orcid0000-0003-3359-7133
person.identifier.orcid0000-0001-8323-888X
person.identifier.ridG-3485-2017
person.identifier.ridG-6210-2011
person.identifier.ridI-5945-2012
person.identifier.scopus-author-id57189394320
person.identifier.scopus-author-id8650947800
person.identifier.scopus-author-id7006676210
person.identifier.scopus-author-id7006067269
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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