Synthesis, characterization, and magnetic properties of Mn nanoferrites
El-Shater, Reda E.; Elshimy, Hassan; Saafan, Samia A.; Darwish, Moustafa A.; Zhou, Di; Trukhanov, Alex V.; Trukhanov, Sergei V.; Fakhry, Fatma;
Abstract
Nanoparticles of Mn ferrite (MnxFe3−xO4, x = 0.0, 0.2, 0.6, and 0.8) have been successfully prepared by the co-precipitation method using the organic base ethanolamine as the chelating agent. The XRD measurements show well crystalline nano-ferrite particles with a lattice parameter gradually increasing with increasing Mn ions substitution. In contrast, XPS spectra show the existence of Mn3+ and Mn4+ with a crystalline size behavior. Small particle sizes and large specific surface areas in the range of 180–120 m2/g have been detected by HRTEM and BET measurements. The large values of specific surface areas nominate the samples to be good candidates for chemical and biological applications. The FT-IR and Raman spectra have supported the Rietveld refinement of XRD without forming any impurity phases. As Mn doping increases, the FMR and VSM mea-surements have indicated magnetic enhancement in the Mn nanoferrite.
Other data
Title | Synthesis, characterization, and magnetic properties of Mn nanoferrites | Authors | El-Shater, Reda E.; Elshimy, Hassan ; Saafan, Samia A.; Darwish, Moustafa A.; Zhou, Di; Trukhanov, Alex V.; Trukhanov, Sergei V.; Fakhry, Fatma | Keywords | Ethanolamine;Magnetization, and superparamagnetism;Mn nano-ferrite;RAMAN;XPS | Issue Date | 20-Dec-2022 | Journal | Journal of Alloys and Compounds | Volume | 928 | ISSN | 09258388 | DOI | 10.1016/j.jallcom.2022.166954 | Scopus ID | 2-s2.0-85138095053 |
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