Mesoporous Silica Matrix as a Tool for Minimizing Dipolar Interactions in NiFe2O4 and ZnFe2O4 Nanoparticles

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Virumbrales del Olmo, Maider and Sáez Puche, Regino and Torralvo Fernández, María José and Blanco Gutiérrez, Verónica (2017) Mesoporous Silica Matrix as a Tool for Minimizing Dipolar Interactions in NiFe2O4 and ZnFe2O4 Nanoparticles. Nanomaterials, 7 (7). p. 151. ISSN 2079-4991

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Official URL: https://doi.org/10.3390/nano7070151




Abstract

NiFe2O4 and ZnFe2O4 nanoparticles have been prepared encased in the MCM (Mobile Composition of Matter) type matrix. Their magnetic behavior has been studied and compared with that corresponding to particles of the same composition and of a similar size (prepared and embedded in amorphous silica or as bare particles). This study has allowed elucidation of the role exerted by the matrix and interparticle interactions in the magnetic behavior of each ferrite system. Thus, very different superparamagnetic behavior has been found in ferrite particles of similar size depending on the surrounding media. Also, the obtained results clearly provide evidence of the vastly different magnetic behavior for each ferrite system.


Item Type:Article
Uncontrolled Keywords:superparamagnetic; ferrite; MCM-matrix; dipolar interactions; matrix effect
Subjects:Sciences > Chemistry > Chemistry, Inorganic
ID Code:66757
Deposited On:19 Jul 2021 14:43
Last Modified:20 Jul 2021 07:15

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