Effect of Silica Embedding on the Structure, Morphology and Magnetic Behavior of (Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub>)<sub>δ</sub>/(SiO<sub>2</sub>)<sub>(100−δ)</sub> Nanoparticles

Effect of Silica Embedding on the Structure, Morphology and Magnetic Behavior of (Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub>)<sub>δ</sub>/(SiO<sub>2</sub>)<sub>(100−δ)</sub> Nanoparticles

The effect of SiO<sub>2</sub> embedding on the obtaining of single-phase ferrites, as well as on the structure, morphology and magnetic properties of (Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub>)<sub>δ</sub>(SiO&...

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Main Authors: Thomas Dippong, Iosif Grigore Deac, Oana Cadar, Erika Andrea Levei
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Nanomaterials
Subjects:
silica matrix
sol-gel synthesis
zinc-manganese ferrite
magnetic properties
Online Access:https://www.mdpi.com/2079-4991/11/9/2232
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spelling doaj-7523aea0086d4557b508fd05f9066b7e2021-09-26T00:48:15ZengMDPI AGNanomaterials2079-49912021-08-01112232223210.3390/nano11092232Effect of Silica Embedding on the Structure, Morphology and Magnetic Behavior of (Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub>)<sub>δ</sub>/(SiO<sub>2</sub>)<sub>(100−δ)</sub> NanoparticlesThomas Dippong0Iosif Grigore Deac1Oana Cadar2Erika Andrea Levei3Faculty of Science, Technical University of Cluj-Napoca, 76 Victoriei Street, 430122 Baia Mare, RomaniaFaculty of Physics, Babes-Bolyai University, 1 Kogalniceanu Street, 400084 Cluj-Napoca, RomaniaINCDO-INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, RomaniaINCDO-INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, RomaniaThe effect of SiO<sub>2</sub> embedding on the obtaining of single-phase ferrites, as well as on the structure, morphology and magnetic properties of (Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub>)<sub>δ</sub>(SiO<sub>2</sub>)<sub>100−δ</sub> (δ = 0–100%) nanoparticles (NPs) synthesized by sol-gel method was assessed. The phase composition and crystallite size were investigated by X-ray diffraction (XRD), the chemical transformations were monitored by Fourier transform infrared (FT-IR) spectroscopy, while the morphology of the NPs by transmission electron microscopy (TEM). The average crystallite size was 5.3–27.0 nm at 400 °C, 13.7–31.1 nm at 700 °C and 33.4–49.1 nm at 1100 °C. The evolution of the saturation magnetization, coercivity and magnetic anisotropy as a function of the crystallite sizes were studied by vibrating sample magnetometry (VSM) technique. As expected, the SiO<sub>2</sub> matrix shows diamagnetic behavior accompanied by the accidentally contribution of a small percent of ferromagnetic impurities. The Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub> embedded in SiO<sub>2</sub> exhibits superparamagnetic-like behavior, whereas the unembedded Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub> behaves like a high-quality ferrimagnet. The preparation route has a significant effect on the particle sizes, which strongly influences the magnetic behavior of the NPs.https://www.mdpi.com/2079-4991/11/9/2232silica matrixsol-gel synthesiszinc-manganese ferritemagnetic properties
collection DOAJ
language English
format Article
sources DOAJ
author Thomas Dippong
Iosif Grigore Deac
Oana Cadar
Erika Andrea Levei
spellingShingle Thomas Dippong
Iosif Grigore Deac
Oana Cadar
Erika Andrea Levei
Effect of Silica Embedding on the Structure, Morphology and Magnetic Behavior of (Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub>)<sub>δ</sub>/(SiO<sub>2</sub>)<sub>(100−δ)</sub> Nanoparticles
Nanomaterials
silica matrix
sol-gel synthesis
zinc-manganese ferrite
magnetic properties
author_facet Thomas Dippong
Iosif Grigore Deac
Oana Cadar
Erika Andrea Levei
author_sort Thomas Dippong
title Effect of Silica Embedding on the Structure, Morphology and Magnetic Behavior of (Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub>)<sub>δ</sub>/(SiO<sub>2</sub>)<sub>(100−δ)</sub> Nanoparticles
title_short Effect of Silica Embedding on the Structure, Morphology and Magnetic Behavior of (Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub>)<sub>δ</sub>/(SiO<sub>2</sub>)<sub>(100−δ)</sub> Nanoparticles
title_full Effect of Silica Embedding on the Structure, Morphology and Magnetic Behavior of (Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub>)<sub>δ</sub>/(SiO<sub>2</sub>)<sub>(100−δ)</sub> Nanoparticles
title_fullStr Effect of Silica Embedding on the Structure, Morphology and Magnetic Behavior of (Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub>)<sub>δ</sub>/(SiO<sub>2</sub>)<sub>(100−δ)</sub> Nanoparticles
title_full_unstemmed Effect of Silica Embedding on the Structure, Morphology and Magnetic Behavior of (Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub>)<sub>δ</sub>/(SiO<sub>2</sub>)<sub>(100−δ)</sub> Nanoparticles
title_sort effect of silica embedding on the structure, morphology and magnetic behavior of (zn<sub>0.6</sub>mn<sub>0.4</sub>fe<sub>2</sub>o<sub>4</sub>)<sub>δ</sub>/(sio<sub>2</sub>)<sub>(100−δ)</sub> nanoparticles
publisher MDPI AG
series Nanomaterials
issn 2079-4991
publishDate 2021-08-01
description The effect of SiO<sub>2</sub> embedding on the obtaining of single-phase ferrites, as well as on the structure, morphology and magnetic properties of (Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub>)<sub>δ</sub>(SiO<sub>2</sub>)<sub>100−δ</sub> (δ = 0–100%) nanoparticles (NPs) synthesized by sol-gel method was assessed. The phase composition and crystallite size were investigated by X-ray diffraction (XRD), the chemical transformations were monitored by Fourier transform infrared (FT-IR) spectroscopy, while the morphology of the NPs by transmission electron microscopy (TEM). The average crystallite size was 5.3–27.0 nm at 400 °C, 13.7–31.1 nm at 700 °C and 33.4–49.1 nm at 1100 °C. The evolution of the saturation magnetization, coercivity and magnetic anisotropy as a function of the crystallite sizes were studied by vibrating sample magnetometry (VSM) technique. As expected, the SiO<sub>2</sub> matrix shows diamagnetic behavior accompanied by the accidentally contribution of a small percent of ferromagnetic impurities. The Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub> embedded in SiO<sub>2</sub> exhibits superparamagnetic-like behavior, whereas the unembedded Zn<sub>0.6</sub>Mn<sub>0.4</sub>Fe<sub>2</sub>O<sub>4</sub> behaves like a high-quality ferrimagnet. The preparation route has a significant effect on the particle sizes, which strongly influences the magnetic behavior of the NPs.
topic silica matrix
sol-gel synthesis
zinc-manganese ferrite
magnetic properties
url https://www.mdpi.com/2079-4991/11/9/2232
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