Structure and physical properties of NiO/Co3O4 nanoparticles
The thermal treatment method was employed to prepare nickel-cobalt oxide (NiO/CO3O4) nanoparticles. This method was attempted to achieve the higher homogeneity of the final product. Specimens of nickel-cobalt oxide were characterized by various experimental techniques, including X-ray diffraction (X...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/52154/ http://psasir.upm.edu.my/id/eprint/52154/1/52154.pdf |
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| author | Naseri, Mahmoud Goodarz Dehzangi, Arash Mohamed Kamari, Halimah See, Alex Abedi, Mina Salasi, Reza Golikand, Ahmad Nozad Dianat, Pouya Larki, Farhad Abedini, Alam Hassan, Jumiah Far, Ahmad Kamalian Yeop Majlis, Burhanuddin |
| author_facet | Naseri, Mahmoud Goodarz Dehzangi, Arash Mohamed Kamari, Halimah See, Alex Abedi, Mina Salasi, Reza Golikand, Ahmad Nozad Dianat, Pouya Larki, Farhad Abedini, Alam Hassan, Jumiah Far, Ahmad Kamalian Yeop Majlis, Burhanuddin |
| author_sort | Naseri, Mahmoud Goodarz |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The thermal treatment method was employed to prepare nickel-cobalt oxide (NiO/CO3O4) nanoparticles. This method was attempted to achieve the higher homogeneity of the final product. Specimens of nickel-cobalt oxide were characterized by various experimental techniques, including X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR). X-ray diffraction results showed that there was no crystallinity in the predecessor, and it still had the amorphous phase. The formations of the crystalline phases of the nickel-cobalt oxide nanoparticles started from 350–500 °C, and the final products had different crystallite sizes ranging from 11–35 nm. Furthermore, the variation of DC conductivity (σdc), impedance, tangent loss (tgδ) and dielectric constant (εʹ) of the calcined specimens with frequency in the range of 102–106 Hz was investigated. σdc showed a value of 1.9 × 10-6 S/m, 1.3 × 10-6 S/m and 1.6 × 10-6 S/m for the specimens calcined at 350, 400 and 450 °C, respectively. Additionally, a decrease in tgδ values with an increase in temperature was observed. Finally, the formed nanoparticles exhibited ferromagnetic behaviors, which were confirmed by using a vibrating sample magnetometer (VSM). |
| first_indexed | 2025-11-15T10:31:34Z |
| format | Article |
| id | upm-52154 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:31:34Z |
| publishDate | 2016 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-521542017-05-05T03:01:54Z http://psasir.upm.edu.my/id/eprint/52154/ Structure and physical properties of NiO/Co3O4 nanoparticles Naseri, Mahmoud Goodarz Dehzangi, Arash Mohamed Kamari, Halimah See, Alex Abedi, Mina Salasi, Reza Golikand, Ahmad Nozad Dianat, Pouya Larki, Farhad Abedini, Alam Hassan, Jumiah Far, Ahmad Kamalian Yeop Majlis, Burhanuddin The thermal treatment method was employed to prepare nickel-cobalt oxide (NiO/CO3O4) nanoparticles. This method was attempted to achieve the higher homogeneity of the final product. Specimens of nickel-cobalt oxide were characterized by various experimental techniques, including X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR). X-ray diffraction results showed that there was no crystallinity in the predecessor, and it still had the amorphous phase. The formations of the crystalline phases of the nickel-cobalt oxide nanoparticles started from 350–500 °C, and the final products had different crystallite sizes ranging from 11–35 nm. Furthermore, the variation of DC conductivity (σdc), impedance, tangent loss (tgδ) and dielectric constant (εʹ) of the calcined specimens with frequency in the range of 102–106 Hz was investigated. σdc showed a value of 1.9 × 10-6 S/m, 1.3 × 10-6 S/m and 1.6 × 10-6 S/m for the specimens calcined at 350, 400 and 450 °C, respectively. Additionally, a decrease in tgδ values with an increase in temperature was observed. Finally, the formed nanoparticles exhibited ferromagnetic behaviors, which were confirmed by using a vibrating sample magnetometer (VSM). MDPI 2016 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/52154/1/52154.pdf Naseri, Mahmoud Goodarz and Dehzangi, Arash and Mohamed Kamari, Halimah and See, Alex and Abedi, Mina and Salasi, Reza and Golikand, Ahmad Nozad and Dianat, Pouya and Larki, Farhad and Abedini, Alam and Hassan, Jumiah and Far, Ahmad Kamalian and Yeop Majlis, Burhanuddin (2016) Structure and physical properties of NiO/Co3O4 nanoparticles. Metals, 6 (8). art. no. 181. pp. 1-13. ISSN 2075-4701 http://www.mdpi.com/2075-4701/6/8/181 10.3390/met6080181 |
| spellingShingle | Naseri, Mahmoud Goodarz Dehzangi, Arash Mohamed Kamari, Halimah See, Alex Abedi, Mina Salasi, Reza Golikand, Ahmad Nozad Dianat, Pouya Larki, Farhad Abedini, Alam Hassan, Jumiah Far, Ahmad Kamalian Yeop Majlis, Burhanuddin Structure and physical properties of NiO/Co3O4 nanoparticles |
| title | Structure and physical properties of NiO/Co3O4 nanoparticles |
| title_full | Structure and physical properties of NiO/Co3O4 nanoparticles |
| title_fullStr | Structure and physical properties of NiO/Co3O4 nanoparticles |
| title_full_unstemmed | Structure and physical properties of NiO/Co3O4 nanoparticles |
| title_short | Structure and physical properties of NiO/Co3O4 nanoparticles |
| title_sort | structure and physical properties of nio/co3o4 nanoparticles |
| url | http://psasir.upm.edu.my/id/eprint/52154/ http://psasir.upm.edu.my/id/eprint/52154/ http://psasir.upm.edu.my/id/eprint/52154/ http://psasir.upm.edu.my/id/eprint/52154/1/52154.pdf |