Szczegóły publikacji
Opis bibliograficzny
Structural and magnetic studies of annealed iron oxide nanoparticles / M. Ounacer, A. Essoumhi, M. Sajieddine, A. Razouk, B. F. O. Costa, S. M. DUBIEL, M. Sahlaoui // Journal of Superconductivity and Novel Magnetism ; ISSN 1557-1939. — 2020 — vol. 33 iss. 10, s. 3249–3261. — Bibliogr. s. 3260–3261, Abstr. — Publikacja dostępna online od: 2020-07-04
Autorzy (7)
- Ounacer Mohamed
- Essoumhi Abdellatif
- Sajieddine Mohammed
- Razouk A.
- Costa Benilde F. O.
- AGHDubiel Stanisław Mieczysław
- Sahlaoui M.
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 130060 |
|---|---|
| Data dodania do BaDAP | 2020-09-11 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s10948-020-05586-z |
| Rok publikacji | 2020 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Superconductivity and Novel Magnetism |
Abstract
The aim of this research work was to study the structural and magnetic properties of iron oxide nanoparticles. The as-prepared sample was synthesized by a co-precipitation route and annealed at different temperatures. The annealed samples were investigated using different techniques such as X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), vibrating sample magnetometry (VSM), and Mossbauer spectrometry (MS). The XRD results indicate the formation of three phases which have been identified as magnetite (Fe3O4), maghemite (gamma-Fe2O3), and hematite (a-Fe2O3). The crystallite size was very similar for both magnetite and maghemite, and it was higher for hematite. The TEM observations showed that the particle shapes were affected by the annealing temperature (T-an). In addition, the SEM analysis revealed a wide distribution of the particle size. The magnetic measurements enabled the determination of a blocking temperature for bothFe(3)O(4)and gamma-Fe(2)O(3)as 210 and 240 K, respectively. The Morin transition temperature was determined in the case of alpha-Fe(2)O(3)from the magnetization and the MS measurements. The synthesized iron oxide nanoparticles can be good candidates for hyperthermia applications.
