The Influence of Zn Substitution on Physical Properties of CoFe2O4 Nanoparticles

被引：10

作者：

Szatmari, Adam ^{[1
]}

Bortnic, Rares ^{[1
]}

Souca, Gabriela ^{[1
]}

Hirian, Razvan ^{[1
]}

Barbu-Tudoran, Lucian ^{[2
,3
]}

Nekvapil, Fran ^{[1
,4
]}

Iacovita, Cristian ^{[5
]}

Burzo, Emil ^{[1
]}

Dudric, Roxana ^{[1
]}

Tetean, Romulus ^{[1
]}

机构：

[1] Babes Bolyai Univ, Fac Phys, Kogalniceanu 1, Cluj Napoca 400084, Romania

[2] Babes Bolyai Univ, Fac Biol & Geol, Electron Microscopy Ctr Prof C Craciun, 5-7 Clinicilor St, Cluj Napoca 400006, Romania

[3] Natl Inst Res & Dev Isotop & Mol Technol, Integrated Electron Microscopy Lab, 67-103 Donat St, Cluj Napoca 400293, Romania

[4] Babes Bolyai Univ, RDI Inst Appl Nat Sci IRDI ANS, RDI Lab Appl Raman Spect, Fantanele 42, Cluj Napoca 400293, Romania

[5] Iuliu Hatieganu Univ Med & Pharm, Fac Pharm, Dept Pharmaceut Phys Biophys, 6 Pasteur St, Cluj Napoca 400349, Romania

来源：

NANOMATERIALS | 2023年 / 13卷 / 01期

关键词：

zinc-cobalt ferrite nanoparticles; Raman measurements; magnetic properties; IRON-OXIDE NANOPARTICLES; FERRITE NANOPARTICLES; MAGNETIC-PROPERTIES; DIELECTRIC-PROPERTIES; RAMAN-SPECTROSCOPY; COBALT;

D O I：

10.3390/nano13010189

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Co1-xZnxFe2O4 nanoparticles (0 <= x <= 1) have been synthesized via a green sol-gel combustion method. The prepared samples were studied using X-ray diffraction measurements (XRD), transmission electron microscopy (TEM), Raman, and magnetic measurements. All samples were found to be single phases and have a cubic Fd-3m structure. EDS analysis confirmed the presence of cobalt, zinc, iron, and oxygen in all studied samples. Raman spectra clearly show that Zn ions are preferentially located in T sites for low Zn concentrations. Due to their high crystallinity, the nanoparticles show high values of the magnetization, which increases with the Zn content for x < 0.5. The magnetic properties are discussed based on Raman results. Co ferrite doped with 30% of Zn produced the largest SAR values, which increase linearly from 148 to 840 W/g(MNPs) as the H is increased from 20 to 60 kA/m.

引用

页数：14

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