Low-temperature chemical synthesis of intermetallic TiFe nanoparticles for hydrogen absorption

Yasukazu Kobayashi, Shohei Yamaoka, Shunta Yamaguchi, Nobuko Hanada, Shohei Tada, Ryuji Kikuchi

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Nanosizing of TiFe hydrogen storage alloy is conducted to facilitate its activation. Here, pure intermetallic TiFe nanoparticles (45 nm) were prepared using chemical reduction of oxide precursors at 600 °C, which is the lowest temperature ever used in chemical synthesis. This was achieved using a strong reducing agent (CaH2) in a molten LiCl. When used for hydrogen absorption, the obtained nanoparticles surprisingly exhibited almost no hydrogen absorption. The results demonstrated that TiFe nanoparticles are more difficult to activate than the bulk powder because the oxidized surface layers of the nanoparticles become stabilized, which prevents the morphological change necessary for their activation.

本文言語English
ページ(範囲)22611-22617
ページ数7
ジャーナルInternational Journal of Hydrogen Energy
46
43
DOI
出版ステータスPublished - 2021 6 23

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • 燃料技術
  • 凝縮系物理学
  • エネルギー工学および電力技術

フィンガープリント

「Low-temperature chemical synthesis of intermetallic TiFe nanoparticles for hydrogen absorption」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル