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dc.contributor.author | Kadyrzhanov, Kayrat K. | |
dc.contributor.author | Egizbek, Kamila | |
dc.contributor.author | Kozlovskiy, Artem L. | |
dc.contributor.author | Zdorovets, Maxim V. | |
dc.date.accessioned | 2024-09-17T11:49:27Z | |
dc.date.available | 2024-09-17T11:49:27Z | |
dc.date.issued | 2019 | |
dc.identifier.issn | 2079-4991 | |
dc.identifier.other | doi:10.3390/nano9081079 | |
dc.identifier.uri | http://rep.enu.kz/handle/enu/16522 | |
dc.description.abstract | The work is dedicated to the study of the structural and optical characteristics, as well as the phase transformations, of ferrite nanoparticles of CeO2-Fe2O3. To characterize the results obtained, the methods of scanning and transmission microscopy, X-ray diffraction (XRD) spectroscopy, and Mössbauer spectroscopy were applied. It was found that the initial nanoparticles are polycrystalline structures based on cerium oxide with the presence of X-ray amorphous inclusions in the structure, which are characteristic of iron oxide. The study determined the dynamics of phase and structural transformations, as well as the appearance of a magnetic texture depending on the annealing temperature. According to the Mossbauer spectroscopy data, it has been established that a rise in the annealing temperature gives rise to an ordering of the magnetic properties and a decrease in the concentration of cationic and vacancy defects in the structure. During the life test of synthesized nanoparticles as cathode materials for lithium-ion batteries, the dependences of the cathode lifetime on the phase composition of nanoparticles were established. It is established that the appearance of a magnetic component in the structure result in a growth in the resource lifetime and the number of operating cycles. The results show the prospects of using these nanoparticles as the basis for lithium-ion batteries, and the simplicity of synthesis and the ability to control phase transformations opens up the possibility of scalable production of these nanoparticles for cathode materials. | ru |
dc.language.iso | en | ru |
dc.publisher | Nanomaterials | ru |
dc.relation.ispartofseries | Volume 9;Issue 8 | |
dc.subject | ferrite nanoparticles | ru |
dc.subject | crystal structure | ru |
dc.subject | phase transformations | ru |
dc.subject | magnetic structures | ru |
dc.subject | nanotechnologies | ru |
dc.title | Synthesis and Properties of Ferrite-Based Nanoparticles | ru |
dc.type | Article | ru |