Effect of morphology and particle size on the electrical properties of nano-nickel ferrite
Four powder samples of Nickel ferrite (NiFe2O4) with different morphology and nanoparticle size have been synthesized by various methods: electrospinning, hydrothermal, green, and sol-gel. Through the use of XRD, FT-IR, SEM, TEM, and BET techniques, the prepared powders were characterized. The produ...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423009614 |
| _version_ | 1797798743992434688 |
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| author | E.M. Kamar M. Khairy M.A. Mousa |
| author_facet | E.M. Kamar M. Khairy M.A. Mousa |
| author_sort | E.M. Kamar |
| collection | DOAJ |
| description | Four powder samples of Nickel ferrite (NiFe2O4) with different morphology and nanoparticle size have been synthesized by various methods: electrospinning, hydrothermal, green, and sol-gel. Through the use of XRD, FT-IR, SEM, TEM, and BET techniques, the prepared powders were characterized. The produced ferrite displayed a cubic spinel phase with various nanofiber, nanotube, nanorod, and nanosphere morphological structures. The electrical conductivity values for each sample increased with increasing temperature indicating the semiconducting behavior of all samples. The conductivity values were found to be dependent on each nanoparticle's size and morphology. The variation of dielectric constant (ε′), dielectric loss (ε′′), and ac conductivity for the investigated samples at different temperatures and frequencies has been studied. Both dielectric constant (ε′) and dielectric loss (ε′′) were decreased with the increase of frequency while A.C. conductivity increased. Knop's phenomenological theory explains the frequency variation of (ε′ and ε′′). The hopping of electrons and holes is suggested to be the electrical conduction mechanism. |
| first_indexed | 2024-03-13T04:08:26Z |
| format | Article |
| id | doaj.art-7ff92776b0774e2aa549c9d64ecca722 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-13T04:08:26Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-7ff92776b0774e2aa549c9d64ecca7222023-06-21T06:57:22ZengElsevierJournal of Materials Research and Technology2238-78542023-05-012473817393Effect of morphology and particle size on the electrical properties of nano-nickel ferriteE.M. Kamar0M. Khairy1M.A. Mousa2Chemistry Department, Faculty of Science, Benha University, Benha, EgyptChemistry Department, Faculty of Science, Benha University, Benha, Egypt; Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia; Corresponding author.Chemistry Department, Faculty of Science, Benha University, Benha, EgyptFour powder samples of Nickel ferrite (NiFe2O4) with different morphology and nanoparticle size have been synthesized by various methods: electrospinning, hydrothermal, green, and sol-gel. Through the use of XRD, FT-IR, SEM, TEM, and BET techniques, the prepared powders were characterized. The produced ferrite displayed a cubic spinel phase with various nanofiber, nanotube, nanorod, and nanosphere morphological structures. The electrical conductivity values for each sample increased with increasing temperature indicating the semiconducting behavior of all samples. The conductivity values were found to be dependent on each nanoparticle's size and morphology. The variation of dielectric constant (ε′), dielectric loss (ε′′), and ac conductivity for the investigated samples at different temperatures and frequencies has been studied. Both dielectric constant (ε′) and dielectric loss (ε′′) were decreased with the increase of frequency while A.C. conductivity increased. Knop's phenomenological theory explains the frequency variation of (ε′ and ε′′). The hopping of electrons and holes is suggested to be the electrical conduction mechanism.http://www.sciencedirect.com/science/article/pii/S2238785423009614NanoMorphologyNiFe2O4ConductivityDielectric constantImpedance |
| spellingShingle | E.M. Kamar M. Khairy M.A. Mousa Effect of morphology and particle size on the electrical properties of nano-nickel ferrite Journal of Materials Research and Technology Nano Morphology NiFe2O4 Conductivity Dielectric constant Impedance |
| title | Effect of morphology and particle size on the electrical properties of nano-nickel ferrite |
| title_full | Effect of morphology and particle size on the electrical properties of nano-nickel ferrite |
| title_fullStr | Effect of morphology and particle size on the electrical properties of nano-nickel ferrite |
| title_full_unstemmed | Effect of morphology and particle size on the electrical properties of nano-nickel ferrite |
| title_short | Effect of morphology and particle size on the electrical properties of nano-nickel ferrite |
| title_sort | effect of morphology and particle size on the electrical properties of nano nickel ferrite |
| topic | Nano Morphology NiFe2O4 Conductivity Dielectric constant Impedance |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423009614 |
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