Influence of Cu<sup>2+</sup>, Ni<sup>2+</sup>, and Zn<sup>2+</sup> Ions Doping on the Structure, Morphology, and Magnetic Properties of Co-Ferrite Embedded in SiO<sub>2</sub> Matrix Obtained by an Innovative Sol-Gel Route
This paper presents the synthesis of metal doped Co ferrites, M<sub>0.2</sub>Co<sub>0.8</sub>Fe<sub>2</sub>O<sub>4</sub> (<i>M</i> = Cu<sup>2+</sup>, Ni<sup>2+</sup>, and Zn<sup>2+</sup>) embedded in SiO&...
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MDPI AG
2020-03-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/3/580 |
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| author | Thomas Dippong Erika Andrea Levei Iosif Grigore Deac Emilia Neag Oana Cadar |
| author_facet | Thomas Dippong Erika Andrea Levei Iosif Grigore Deac Emilia Neag Oana Cadar |
| author_sort | Thomas Dippong |
| collection | DOAJ |
| description | This paper presents the synthesis of metal doped Co ferrites, M<sub>0.2</sub>Co<sub>0.8</sub>Fe<sub>2</sub>O<sub>4</sub> (<i>M</i> = Cu<sup>2+</sup>, Ni<sup>2+</sup>, and Zn<sup>2+</sup>) embedded in SiO<sub>2</sub> matrix by an innovative sol-gel route. The structural and morphological characterization provided information about the crystalline phases, crystallite size, and the shape of the prepared ferrites. The thermal study depicted the thermal decomposition and stability of the obtained ferrites. X-ray diffraction indicated nanocrystalline ferrites with spinel structure and the lack of crystalline phase impurities, while Fourier transform infrared spectroscopy revealed the presence of functional groups in precursors and ferrite powders. The lattice parameters showed a gradual increase indicating a uniform distribution of divalent metal ions in the Co ferrite lattice. The crystallite size, magnetic moment, super-exchange and deflection of magnetic domain were influenced by the dopant metal ion. The room temperature magnetization indicated a ferromagnetic behavior of the ferrites annealed at 1000 °C and a superparamagnetic behavior of the ferrites annealed at 700 °C. |
| first_indexed | 2024-12-14T20:34:51Z |
| format | Article |
| id | doaj.art-bcdc49991443468fa39b806970051618 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-12-14T20:34:51Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-bcdc49991443468fa39b8069700516182022-12-21T22:48:26ZengMDPI AGNanomaterials2079-49912020-03-0110358010.3390/nano10030580nano10030580Influence of Cu<sup>2+</sup>, Ni<sup>2+</sup>, and Zn<sup>2+</sup> Ions Doping on the Structure, Morphology, and Magnetic Properties of Co-Ferrite Embedded in SiO<sub>2</sub> Matrix Obtained by an Innovative Sol-Gel RouteThomas Dippong0Erika Andrea Levei1Iosif Grigore Deac2Emilia Neag3Oana Cadar4Department of Chemistry and Biology, Technical University of Cluj-Napoca, North University Center of Baia Mare, 76 Victoriei Street, 430122 Baia Mare, RomaniaINCDO-INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, RomaniaBabes-Bolyai University, Faculty of Physics, 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, RomaniaThis paper presents the synthesis of metal doped Co ferrites, M<sub>0.2</sub>Co<sub>0.8</sub>Fe<sub>2</sub>O<sub>4</sub> (<i>M</i> = Cu<sup>2+</sup>, Ni<sup>2+</sup>, and Zn<sup>2+</sup>) embedded in SiO<sub>2</sub> matrix by an innovative sol-gel route. The structural and morphological characterization provided information about the crystalline phases, crystallite size, and the shape of the prepared ferrites. The thermal study depicted the thermal decomposition and stability of the obtained ferrites. X-ray diffraction indicated nanocrystalline ferrites with spinel structure and the lack of crystalline phase impurities, while Fourier transform infrared spectroscopy revealed the presence of functional groups in precursors and ferrite powders. The lattice parameters showed a gradual increase indicating a uniform distribution of divalent metal ions in the Co ferrite lattice. The crystallite size, magnetic moment, super-exchange and deflection of magnetic domain were influenced by the dopant metal ion. The room temperature magnetization indicated a ferromagnetic behavior of the ferrites annealed at 1000 °C and a superparamagnetic behavior of the ferrites annealed at 700 °C.https://www.mdpi.com/2079-4991/10/3/580cobalt ferritemetal dopingsol-gelnanocompositesmagnetic properties |
| spellingShingle | Thomas Dippong Erika Andrea Levei Iosif Grigore Deac Emilia Neag Oana Cadar Influence of Cu<sup>2+</sup>, Ni<sup>2+</sup>, and Zn<sup>2+</sup> Ions Doping on the Structure, Morphology, and Magnetic Properties of Co-Ferrite Embedded in SiO<sub>2</sub> Matrix Obtained by an Innovative Sol-Gel Route Nanomaterials cobalt ferrite metal doping sol-gel nanocomposites magnetic properties |
| title | Influence of Cu<sup>2+</sup>, Ni<sup>2+</sup>, and Zn<sup>2+</sup> Ions Doping on the Structure, Morphology, and Magnetic Properties of Co-Ferrite Embedded in SiO<sub>2</sub> Matrix Obtained by an Innovative Sol-Gel Route |
| title_full | Influence of Cu<sup>2+</sup>, Ni<sup>2+</sup>, and Zn<sup>2+</sup> Ions Doping on the Structure, Morphology, and Magnetic Properties of Co-Ferrite Embedded in SiO<sub>2</sub> Matrix Obtained by an Innovative Sol-Gel Route |
| title_fullStr | Influence of Cu<sup>2+</sup>, Ni<sup>2+</sup>, and Zn<sup>2+</sup> Ions Doping on the Structure, Morphology, and Magnetic Properties of Co-Ferrite Embedded in SiO<sub>2</sub> Matrix Obtained by an Innovative Sol-Gel Route |
| title_full_unstemmed | Influence of Cu<sup>2+</sup>, Ni<sup>2+</sup>, and Zn<sup>2+</sup> Ions Doping on the Structure, Morphology, and Magnetic Properties of Co-Ferrite Embedded in SiO<sub>2</sub> Matrix Obtained by an Innovative Sol-Gel Route |
| title_short | Influence of Cu<sup>2+</sup>, Ni<sup>2+</sup>, and Zn<sup>2+</sup> Ions Doping on the Structure, Morphology, and Magnetic Properties of Co-Ferrite Embedded in SiO<sub>2</sub> Matrix Obtained by an Innovative Sol-Gel Route |
| title_sort | influence of cu sup 2 sup ni sup 2 sup and zn sup 2 sup ions doping on the structure morphology and magnetic properties of co ferrite embedded in sio sub 2 sub matrix obtained by an innovative sol gel route |
| topic | cobalt ferrite metal doping sol-gel nanocomposites magnetic properties |
| url | https://www.mdpi.com/2079-4991/10/3/580 |
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