Characterization of Magnesium Doped Lithium Iron Silicate

The synthesis of Mg doped Li₂Fe_1–<i>x</i>Mg_<i>x</i>SiO₄ (<i>x</i> = 0, 0.10 and 0.15) via solid-state reaction is reported. The product was characterized by Mössbauer spectroscopy (MS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), magnetic measurements and scanning electron microscopy (SEM). The structures of the reaction products were confirmed to be the monoclinic structure <i>P21/n</i>, but impurities were detected in them. In the undoped sample small amounts of lithium iron oxide or lithiated magnetite was obtained, whereas a magnetic phase was found in samples with more than 10 % (mole fraction) of Mg doping.

Abstract licence: CC BY

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