KIT | KIT-Bibliothek | Impressum | Datenschutz

Influence of cobalt substitution in CoFe2O4 nanoparticles on structural, morphological, cation distribution, optical and magnetic properties

Mosleh, Z. ; Beygmohammadvand, M.; Ghotbi Varzaneh, A. ORCID iD icon 1; Kameli, P.
1 Institut für Mikrostrukturtechnik (IMT), Karlsruher Institut für Technologie (KIT)

Abstract:

This paper presents the first-time synthesis of CoFe2xCoxO4 nanoparticles (where x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, and 0.6) through hydrothermal methods utilizing metal chloride precursors. X-ray diffraction (XRD) analysis confirms the formation of a cubic spinel structure characterized by the Fdm space group. Field Emission Scanning Electron Microscopy (FE-SEM) images reveal that the average grain size of the nanoparticles lies between 50 nm and 90 nm. Notably, the optical band gap of the Co3+-doped samples exhibits a gradual increase from 1.7 eV to 2.5 eV. Furthermore, a reduction in saturation magnetization was noted with increasing doping content at both 5 K and 300 K. The observed decrease in saturation magnetization in the doped samples can be attributed to the migration of Co2+ ions from the B site to the A site, as well as the substitution of Fe3+ ions with Co3+ ions in the B site. Additionally, the influence of annealing temperature on the structure, morphology, and magnetic properties of the nanoparticles was examined.

Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 15.01.2025
Sprache Englisch
Identifikator ISSN: 2405-8440
KITopen-ID: 1000178486
HGF-Programm 43.31.02 (POF IV, LK 01) Devices and Applications
Erschienen in Heliyon
Verlag Elsevier
Band 11
Heft 1
Seiten Art.-Nr.: e41276
Vorab online veröffentlicht am 30.12.2024
Nachgewiesen in Scopus
Dimensions

Verlagsausgabe §
DOI: 10.5445/IR/1000178486
Veröffentlicht am 30.01.2025
Seitenaufrufe: 16
seit 30.01.2025
Downloads: 9
seit 02.02.2025
Cover der Publikation
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page