Synthesis and 57Fe Mössbauer Studies of Polycrystalline Magnesium Ferrites MgFe2O4 and Mg(Fe0.8Ga0.2)2O4
I. S. Glazkovaa, b, M. N. Smirnovac, O. N. Kondrat’evac, G. E. Nikiforovac, E. S. Romanovac,
A. V. Soboleva, b, I. A. Presniakova, and V. A. Ketskoc, *
a Department of Chemistry, Moscow State University, Moscow, 119991 Russia
b Shenzhen MSU-BIT University, Shenzhen, 517182 China
c Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, 119991 Russia
Correspondence to: *e-mail: ketsko@igic.ras.ru
Received 25 January, 2023
Abstract—The main goal of this study is the preparation of single-phase MgFe2O4 and Mg(Fe0.8Ga0.2)2O4 powders using a gel auto-combustion method. X-ray powder diffraction (PXRD), micro-X-ray fluorescence spectrometry (μ-XRF), CHNS elemental analysis, scanning and transmission electron microscopies (SEM and TEM) methods have been used to characterize morphology and chemical composition of the synthesized sample. The cationic distribution in the ferrites has been evaluated from the 57Fe Mössbauer spectroscopy measurements. Mössbauer measurements were used to characterize the paramagnet-ferrimagnet phase transition in MgFe2O4.
Keywords: ferrospinel, synthesis, X-ray diffraction, SEM, Mössbauer spectroscopy
DOI: 10.1134/S0036023623600387