Discussion on the Interparticle Interactions in NiFe2O4 and ZnFe2O4 Nanosized Systems Based on the Matrix Effects in the Magnetic Behavior

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dc.contributor.authorVirumbrales, Maider
dc.contributor.authorSáez Puche, Regino
dc.contributor.authorBlanco Gutiérrez, Verónica
dc.contributor.authorTorralvo Fernández, María Josefa
dc.date.accessioned2024-02-12T10:28:25Z
dc.date.available2024-02-12T10:28:25Z
dc.date.issued2017
dc.description.abstractZnFe2O4 and NiFe2O4 particles ranging from 5 to 8 nm have been prepared inside the channels of SBA-15 mesoporous material and nanowires were recovered after dissolving the silica matrix. For both ferrite compositions a hardening of the magnetic behavior has been obtained when using the mesoporous matrix. Thanks to the comparison of the magnetic behavior of the nanoparticles when contained and not in the matrix, it was possible to elucidate not only the matrix effect but also the kind of interparticle interactions depending on the ferrite composition. Thus, nickel ferrite particles are characterized by intense dipolar interactions that are responsible for the so high superparamagnetic response and that can be avoided by matrix effects only at high temperatures. On the contrary, the inherent low-intense dipolar interactions of the zinc ferrite system lead it to present lower superparamagnetic moments, and in the case of encapsulated particles, the superparamagnetic behavior would correspond to almost not-interacting particles. In addition, interactions occurring between surface spins of different particles are more visible in zinc ferrite system as consequence of its so low intense dipolar interactions and are prevented thanks to the use of the matrix.
dc.description.departmentDepto. de Química Inorgánica
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Ciencia e Innovación (España)
dc.description.statuspub
dc.identifier.citationM. Virumbrales, R. Sáez-Puche, V. Blanco-Gutiérrez, and M. J. Torralvo-Fernández The Journal of Physical Chemistry C 2017 121 (7), 4029-4036 DOI: 10.1021/acs.jpcc.6b11801
dc.identifier.doi10.1021/acs.jpcc.6b11801
dc.identifier.issn4029-4036
dc.identifier.officialurlhttps://doi.org/10.1021/acs.jpcc.6b11801
dc.identifier.urihttps://hdl.handle.net/20.500.14352/101203
dc.issue.number7
dc.journal.titleJournal of Physical Chemistry C
dc.language.isoeng
dc.page.final4036
dc.page.initial4029
dc.publisherAmerican Chemical Society
dc.rights.accessRightsrestricted access
dc.subject.ucmCiencias
dc.subject.unesco23 Química
dc.titleDiscussion on the Interparticle Interactions in NiFe2O4 and ZnFe2O4 Nanosized Systems Based on the Matrix Effects in the Magnetic Behavior
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number121
dspace.entity.typePublication
relation.isAuthorOfPublicationb28d866e-85f4-4a0e-a91b-dc263c1aaa45
relation.isAuthorOfPublicationf6a2e8ec-cb28-4e8f-b54a-b503b2cb80ce
relation.isAuthorOfPublication.latestForDiscoveryb28d866e-85f4-4a0e-a91b-dc263c1aaa45
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