Geodesic
Synthesis of magnesium ferrite by combustion of glycine-nitrate gel: the influence of reagents on the gel-precursor and the microstructure of nanopowders
Nanosistemy: fizika, himiâ, matematika, Tome 15 (2024) no. 2, pp. 224-232

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In this study, the influence of initial reagents on the phase composition and morphology of magnesium ferrite obtained by combustion of glycine-nitrate gel was investigated. The local environment of iron ions in the gel-precursor was studied in detail using FT-IR, XANES- and EXAFS- spectroscopy. It has been established that in the gel-precursor obtained by dissolving metals (Mg, Fe) in dilute nitric acid, binuclear Fe(III) complexes are formed, while in a similar gel-precursor obtained from crystalline hydrates of nitrates of the corresponding metals, trinuclear Fe(III) complexes predominate. Combustion of a gel consisting of binuclear Fe(III) complexes leads to the formation of nanocrystalline magnesium ferrite powder, characterized by a unimodal particle size distribution.
Keywords: spinel, nanopowders
Mots-clés : gel combustion, glycine, MgFe$_2$O$_4$. 
@article{NANO_2024_15_2_a8,
     author = {Maria N. Smirnova and Galina E. Nikiforova and Olga N. Kondrat'eva},
     title = {Synthesis of magnesium ferrite by combustion of glycine-nitrate gel: the influence of reagents on the gel-precursor and the microstructure of nanopowders},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {224--232},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {2024},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2024_15_2_a8/}
}
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Maria N. Smirnova; Galina E. Nikiforova; Olga N. Kondrat'eva. Synthesis of magnesium ferrite by combustion of glycine-nitrate gel: the influence of reagents on the gel-precursor and the microstructure of nanopowders. Nanosistemy: fizika, himiâ, matematika, Tome 15 (2024) no. 2, pp. 224-232. http://geodesic.mathdoc.fr/item/NANO_2024_15_2_a8/