Magnetic Resonance Studies of Hybrid Nanocomposites Containing Nanocrystalline TiO2 and Graphene-Related Materials

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dc.contributor.authorGuskos, Nikos
dc.contributor.authorŻolnierkiewicz, Grzegorz
dc.contributor.authorKusiak-Nejman, Ewelina
dc.contributor.authorGuskos, Aleksander
dc.contributor.authorAidinis, Konstantinos
dc.contributor.authorBobrowska, Marta
dc.contributor.authorBerczynski, Paweł
dc.contributor.authorWanag, Agnieszka
dc.contributor.authorPełech, Iwona
dc.contributor.authorNarkiewicz, Urszula
dc.contributor.authorMorawski, Antoni W.
dc.contributor.organizationZachodniopomorski Uniwersytet Technologiczny w Szczecinie
dc.date.accessioned2024-04-24T12:53:15Z
dc.date.available2024-04-24T12:53:15Z
dc.date.issued2022-03-18
dc.description.abstractNanocomposites based on nanocrystalline titania modified with graphene related materials (reduced and oxidized form of graphene) showed the existence of magnetic agglomerates. All parameters of magnetic resonanc spectra strongly depended on the materials’ modification processes. The reduction of graphene oxide significantly increased the number of magnetic moments, which caused crucial changes in the reorientation and relaxation processes. At room temperature, a wide resonance line dominated for all nanocomposites studied and in some cases, a narrow resonance line derived from the conduction electrons. Some nanocomposites (samples of titania modified with graphene oxide, prepared with the addition of water or butan-1-ol) showed a single domain magnetic (ferromagnetic) arrangement, and others (samples of titania modified with reduced graphene oxide) exhibited magnetic anisotropy. In addition, the spectra of EPR from free radicals were observed for all samples at the temperature of 4 K. The magnetic resonance imaging methods enable the capturing of even a small number of localized magnetic moments, which significantly affects the physicochemical properties of the materials.en
dc.description.sponsorshipNCBiR, Norway Grants
dc.identifier.citationGuskos, N.; Zolnierkiewicz, G.; Kusiak-Nejman, E.; Guskos, A.; Aidinis, K.; Bobrowska, M.; Berczynski, P.; Wanag, A.; Pelech, I.; Narkiewicz, U., Morawski A. W. (2022). Magnetic Resonance Studies of Hybrid Nanocomposites Containing Nanocrystalline TiO2 and Graphene-Related Materials. Materials, Vol. 15, iss. 6, pp. 1-9, nr art. 2244. https://doi.org/10.3390/ma15062244en
dc.identifier.issn10.3390/ma15062244
dc.identifier.projectNOR/POLNORCCS/PhotoRed/0007/ 2019-00
dc.identifier.urihttp://hdl.handle.net/20.500.12539/2008
dc.language.isoen
dc.page.number1-9
dc.publisherMDPI
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.sourceMaterialsen
dc.subjecttitania
dc.subjectgraphene
dc.subjectmagnetic moments
dc.subjectmagnetic arrangement
dc.subjectmagnetic resonance
dc.subject.otherinżynieria chemiczna
dc.titleMagnetic Resonance Studies of Hybrid Nanocomposites Containing Nanocrystalline TiO2 and Graphene-Related Materials
dc.typeArticle
publicationvolume.volumeNumberVol. 15, iss. 6en

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