Controlled Oxidation of Cobalt Nanoparticles to Obtain Co/CoO/Co<sub>3</sub>O<sub>4</sub> Composites with Different Co Content
The paper studies patterns of interaction of electroexplosive Co nanoparticles with air oxygen during heating. The characteristics of Co nanoparticles and composite Co/CoO/Co<sub>3</sub>O<sub>4</sub> nanoparticles formed as a result of oxidation were studied using transmissio...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/15/2523 |
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| author | Aleksandr S. Lozhkomoev Alexander V. Pervikov Sergey O. Kazantsev Konstantin V. Suliz Roman V. Veselovskiy Andrey A. Miller Marat I. Lerner |
| author_facet | Aleksandr S. Lozhkomoev Alexander V. Pervikov Sergey O. Kazantsev Konstantin V. Suliz Roman V. Veselovskiy Andrey A. Miller Marat I. Lerner |
| author_sort | Aleksandr S. Lozhkomoev |
| collection | DOAJ |
| description | The paper studies patterns of interaction of electroexplosive Co nanoparticles with air oxygen during heating. The characteristics of Co nanoparticles and composite Co/CoO/Co<sub>3</sub>O<sub>4</sub> nanoparticles formed as a result of oxidation were studied using transmission electron microscopy, X-ray phase analysis, thermogravimetric analysis, differential scanning calorimetry, and vibrating sample magnetometry. It was established that nanoparticles with similar morphology in the form of hollow spheres with different content of Co, CoO, and Co<sub>3</sub>O<sub>4</sub> can be produced by varying oxidation temperatures. The influence of the composition of composite nanoparticles on their magnetic characteristics is shown. |
| first_indexed | 2024-03-09T05:08:48Z |
| format | Article |
| id | doaj.art-285e6bc0d2d043a1a96f2772afe0fbd2 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T05:08:48Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-285e6bc0d2d043a1a96f2772afe0fbd22023-12-03T12:51:24ZengMDPI AGNanomaterials2079-49912022-07-011215252310.3390/nano12152523Controlled Oxidation of Cobalt Nanoparticles to Obtain Co/CoO/Co<sub>3</sub>O<sub>4</sub> Composites with Different Co ContentAleksandr S. Lozhkomoev0Alexander V. Pervikov1Sergey O. Kazantsev2Konstantin V. Suliz3Roman V. Veselovskiy4Andrey A. Miller5Marat I. Lerner6Laboratory of Nanobioengineering, Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 634021 Tomsk, RussiaLaboratory of Physical Chemistry of Ultrafine Materials, Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 634021 Tomsk, RussiaLaboratory of Nanobioengineering, Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 634021 Tomsk, RussiaLaboratory of Nanobioengineering, Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 634021 Tomsk, RussiaSchmidt Institute of Physics of the Earth, Russian Academy of Sciences, 123242 Moscow, RussiaShared Use Center “Nanotech”, Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 634021 Tomsk, RussiaLaboratory of Physical Chemistry of Ultrafine Materials, Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 634021 Tomsk, RussiaThe paper studies patterns of interaction of electroexplosive Co nanoparticles with air oxygen during heating. The characteristics of Co nanoparticles and composite Co/CoO/Co<sub>3</sub>O<sub>4</sub> nanoparticles formed as a result of oxidation were studied using transmission electron microscopy, X-ray phase analysis, thermogravimetric analysis, differential scanning calorimetry, and vibrating sample magnetometry. It was established that nanoparticles with similar morphology in the form of hollow spheres with different content of Co, CoO, and Co<sub>3</sub>O<sub>4</sub> can be produced by varying oxidation temperatures. The influence of the composition of composite nanoparticles on their magnetic characteristics is shown.https://www.mdpi.com/2079-4991/12/15/2523electrical explosion of wirecobalt nanoparticlesoxidationcomposite nanoparticlesmagnetic properties |
| spellingShingle | Aleksandr S. Lozhkomoev Alexander V. Pervikov Sergey O. Kazantsev Konstantin V. Suliz Roman V. Veselovskiy Andrey A. Miller Marat I. Lerner Controlled Oxidation of Cobalt Nanoparticles to Obtain Co/CoO/Co<sub>3</sub>O<sub>4</sub> Composites with Different Co Content Nanomaterials electrical explosion of wire cobalt nanoparticles oxidation composite nanoparticles magnetic properties |
| title | Controlled Oxidation of Cobalt Nanoparticles to Obtain Co/CoO/Co<sub>3</sub>O<sub>4</sub> Composites with Different Co Content |
| title_full | Controlled Oxidation of Cobalt Nanoparticles to Obtain Co/CoO/Co<sub>3</sub>O<sub>4</sub> Composites with Different Co Content |
| title_fullStr | Controlled Oxidation of Cobalt Nanoparticles to Obtain Co/CoO/Co<sub>3</sub>O<sub>4</sub> Composites with Different Co Content |
| title_full_unstemmed | Controlled Oxidation of Cobalt Nanoparticles to Obtain Co/CoO/Co<sub>3</sub>O<sub>4</sub> Composites with Different Co Content |
| title_short | Controlled Oxidation of Cobalt Nanoparticles to Obtain Co/CoO/Co<sub>3</sub>O<sub>4</sub> Composites with Different Co Content |
| title_sort | controlled oxidation of cobalt nanoparticles to obtain co coo co sub 3 sub o sub 4 sub composites with different co content |
| topic | electrical explosion of wire cobalt nanoparticles oxidation composite nanoparticles magnetic properties |
| url | https://www.mdpi.com/2079-4991/12/15/2523 |
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