Chemical synthesis of unique intermetallic TiFe nanostructures originating from the morphology of oxide precursors

Yasukazu Kobayashi*, Heng Yi Teah, Nobuko Hanada

*この研究の対応する著者

研究成果: Article査読

1 被引用数 (Scopus)

抄録

In this study, intermetallic TiFe nanostructures were chemically prepared from Ti-Fe oxide precursors using a CaH2reducing agent in molten LiCl at as low as 600 °C. The used precursor was spherical oxide nanoparticles or commercial FeTiO3bulk powder. After the reduction treatment, the former precursor was changed to an aggregation of TiFe nanoparticles with a particle size of 44-46 nm. Surprisingly, the latter precursor was reduced to a layered morphology composed of TiFe nanoparticles with a particle size of 47-65 nm. An intermetallic compound with a unique layered morphology was found for the first time, and the layered morphology could have originated from the morphology of the FeTiO3precursor in which the Fe2+and Ti4+ions occupied alternating layers perpendicular to the trigonalc-axis. The precursor originated morphology was enabled by the proposed low reduction temperature method, and the environment-friendliness of the proposed method was finally evaluated using life-cycle assessment (LCA).

本文言語English
ページ(範囲)5284-5291
ページ数8
ジャーナルNanoscale Advances
3
18
DOI
出版ステータスPublished - 2021 9 21

ASJC Scopus subject areas

  • バイオエンジニアリング
  • 化学 (全般)
  • 原子分子物理学および光学
  • 材料科学(全般)
  • 工学(全般)

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