Structural, Magnetic, and AC Measurements of Nanoferrites/Graphene Composites
As a contribution to the graphene-based nanoferrite composites, this article is intended to present Mn, Co, and Co-Mn nanoferrites for the preparation and investigation of such samples. Nanoparticles of Co ferrite, Mn ferrite, and Co-Mn ferrite were chemically synthesized by the coprecipitation meth...
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| Format: | Article |
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MDPI AG
2022-03-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/6/931 |
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| author | Shaimaa A. Habib Samia A. Saafan Talaat M. Meaz Moustafa A. Darwish Di Zhou Mayeen U. Khandaker Mohammad A. Islam Hamidreza Mohafez Alex V. Trukhanov Sergei V. Trukhanov Maha K. Omar |
| author_facet | Shaimaa A. Habib Samia A. Saafan Talaat M. Meaz Moustafa A. Darwish Di Zhou Mayeen U. Khandaker Mohammad A. Islam Hamidreza Mohafez Alex V. Trukhanov Sergei V. Trukhanov Maha K. Omar |
| author_sort | Shaimaa A. Habib |
| collection | DOAJ |
| description | As a contribution to the graphene-based nanoferrite composites, this article is intended to present Mn, Co, and Co-Mn nanoferrites for the preparation and investigation of such samples. Nanoparticles of Co ferrite, Mn ferrite, and Co-Mn ferrite were chemically synthesized by the coprecipitation method. The composites of ferrite/graphene were made by incorporating weight ratios of 25% graphene to 75% ferrite. Various structural and characterizing investigations of ferrite samples and ferrite/graphene composites were performed, including XRD, EDX, SEM, VSM hysteresis loops, AC conductivity, and dielectric behavior. The investigations ensured the formation of the intended nanoferrite powders, each having a single-phase crystal structure with no undesired phases or elements. All samples exhibit a soft magnetic behavior. They show a semiconducting behavior of AC electrical conductivity as well. This was proved by the temperature dependence of the AC’s electrical conductivity. Whereas the dielectric function and loss tangent show an expected, well-explained behavior, the ferrite/graphene composite samples have lower saturation magnetization values, lower AC conductivity, and dielectric constant values than the pure ferrites but still have the same behavior trends as those of the pure ferrites. The values obtained may represent steps on developing new materials for expected applications, such as manufacturing supercapacitors and/or improved battery electrodes. |
| first_indexed | 2024-03-09T13:07:48Z |
| format | Article |
| id | doaj.art-8be47c1a04f7476fba9746de8b624079 |
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| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T13:07:48Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-8be47c1a04f7476fba9746de8b6240792023-11-30T21:45:42ZengMDPI AGNanomaterials2079-49912022-03-0112693110.3390/nano12060931Structural, Magnetic, and AC Measurements of Nanoferrites/Graphene CompositesShaimaa A. Habib0Samia A. Saafan1Talaat M. Meaz2Moustafa A. Darwish3Di Zhou4Mayeen U. Khandaker5Mohammad A. Islam6Hamidreza Mohafez7Alex V. Trukhanov8Sergei V. Trukhanov9Maha K. Omar10Physics Department, Faculty of Science, Tanta University, Tanta 31527, EgyptPhysics Department, Faculty of Science, Tanta University, Tanta 31527, EgyptPhysics Department, Faculty of Science, Tanta University, Tanta 31527, EgyptPhysics Department, Faculty of Science, Tanta University, Tanta 31527, EgyptElectronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaCentre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, Petaling Jaya 47500, MalaysiaDepartment of Electrical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, MalaysiaDepartment of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, MalaysiaDepartment of Electronic Materials Technology, National University of Science and Technology MISiS, 119049 Moscow, RussiaLaboratory of Magnetic Films Physics, SSPA “Scientific and Practical Materials Research Centre of NAS of Belarus”, 19, P. Brovki Str., 220072 Minsk, BelarusPhysics Department, Faculty of Science, Tanta University, Tanta 31527, EgyptAs a contribution to the graphene-based nanoferrite composites, this article is intended to present Mn, Co, and Co-Mn nanoferrites for the preparation and investigation of such samples. Nanoparticles of Co ferrite, Mn ferrite, and Co-Mn ferrite were chemically synthesized by the coprecipitation method. The composites of ferrite/graphene were made by incorporating weight ratios of 25% graphene to 75% ferrite. Various structural and characterizing investigations of ferrite samples and ferrite/graphene composites were performed, including XRD, EDX, SEM, VSM hysteresis loops, AC conductivity, and dielectric behavior. The investigations ensured the formation of the intended nanoferrite powders, each having a single-phase crystal structure with no undesired phases or elements. All samples exhibit a soft magnetic behavior. They show a semiconducting behavior of AC electrical conductivity as well. This was proved by the temperature dependence of the AC’s electrical conductivity. Whereas the dielectric function and loss tangent show an expected, well-explained behavior, the ferrite/graphene composite samples have lower saturation magnetization values, lower AC conductivity, and dielectric constant values than the pure ferrites but still have the same behavior trends as those of the pure ferrites. The values obtained may represent steps on developing new materials for expected applications, such as manufacturing supercapacitors and/or improved battery electrodes.https://www.mdpi.com/2079-4991/12/6/931spinel ferritesgraphenecompositesmagnetic propertiesAC conductivity |
| spellingShingle | Shaimaa A. Habib Samia A. Saafan Talaat M. Meaz Moustafa A. Darwish Di Zhou Mayeen U. Khandaker Mohammad A. Islam Hamidreza Mohafez Alex V. Trukhanov Sergei V. Trukhanov Maha K. Omar Structural, Magnetic, and AC Measurements of Nanoferrites/Graphene Composites Nanomaterials spinel ferrites graphene composites magnetic properties AC conductivity |
| title | Structural, Magnetic, and AC Measurements of Nanoferrites/Graphene Composites |
| title_full | Structural, Magnetic, and AC Measurements of Nanoferrites/Graphene Composites |
| title_fullStr | Structural, Magnetic, and AC Measurements of Nanoferrites/Graphene Composites |
| title_full_unstemmed | Structural, Magnetic, and AC Measurements of Nanoferrites/Graphene Composites |
| title_short | Structural, Magnetic, and AC Measurements of Nanoferrites/Graphene Composites |
| title_sort | structural magnetic and ac measurements of nanoferrites graphene composites |
| topic | spinel ferrites graphene composites magnetic properties AC conductivity |
| url | https://www.mdpi.com/2079-4991/12/6/931 |
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