Regensburg 2025 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 38: Magnetic Particles / Clusters & Biomagnetism
MA 38.10: Vortrag
Donnerstag, 20. März 2025, 17:45–18:00, H18
Structural, magnetic properties and induction heating behavior studies of Mn doped cupper ferrite nanopowders synthesized using co-precipitation method — •Mahmoud Ismail1 and Diaa EL-Rahman Rayan2,3 — 1Biophysics Branch and Physics Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt — 2Central Metallurgical Research and Development Institute (CMRDI), P.O. Box: 87 Helwan, 11421, Egypt — 3Department of Physics, Deraya University, New Minia, Minya, Egypt
In this research synthesizes nanocrystalline CuFe2O4 spinel structure using co-precipitation method. The pure copper ferrite is substituted by manganese MnxCu(1*x)Fe2O4 nanopowders (x from 0.0 to 1.0). XRD, HR-TEM, UV-visible-Spectrophotometer and vibrating sample magnetometer (VSM) are utilized in order to study the effect of variation of Mn2+ ions substitution and its impact on crystalline size, lattice parameters, microstructure and optical and magnetic properties of the formed nanopowders. Indeed, heating properties of the MnxCu(1-x)Fe2O4 nanoparticles in an alternating magnetic field at 160 kHz were estimated. The results reveal that the sonochemical method for polyethylene glycol (PEGylated) MnxCu(1-x)Fe2O4 nanoparticles with size 5 nm leads to pseudo-single domain with smallest loop area. Of note, it is clear that the specific heat rate SAR values were in the range from 104.5 to 302.0 W/g at different synthesis conditions. Finally, large SAR values are obtained within 10*15 min using low magnetic field, making Cu-Mn ferrite appropriate for hyperthermia treatment of cancer.
Keywords: MnxCu1-xFe2O4; Spinel Ferrites; Magnetic Properties; Induction Heating; Specific Heat Rate (SAR)