Synthesis of Nanoparticles of Li Ferrite by Solid State Method

Abstract

Abstract: The precursor of Li ferrite with a solid solution structure was prepared by mechanochemical treatment of Li₂CO₃ and α-Fe₂O₃
powders through high energy ball milling. Li ferrite was obtained after heat treatment of the precursor under a temperature much lower than that
required in general solid state reaction. LiFeO₂ was the intermediate of the formation of Li ferrite. The ferrite was characterized by
Mossbauer spectra, XRD, IR spectra, TEM and VSM methods. The results showed that the ferrite was nanoparticles with ordered
structure of Li⁺ and Fe³⁺ ions in the octahedral sites of the ferrite. The magnetization of the ferrite nanoparticles was higher than that of
the samples synthesized by wet chemical method and the coercivity of the ferrite was higher than that of the bulk ferrite.

Key words: Li ferrite, nanoparticle, high energy ball milling, mechanochemical treatment

CLC Number:

TF123

JIANG Ji-Sen,GAO Lian,GUO Jing-Kun,YANG Xie-Long,SHEN Hong-Lie. Synthesis of Nanoparticles of Li Ferrite by Solid State Method[J]. Journal of Inorganic Materials.

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Synthesis of Nanoparticles of Li Ferrite by Solid State Method

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