Improvement effects of TiCL on dehydrogenation of magnesium borohydride Mg(BH4)2

Hai Wen Li, Daiiu Matsumura, Yasuo Nishihata, Etsuo Akiba, Shin Ichi Orimo

研究成果: Article査読

4 被引用数 (Scopus)

抄録

The dehydrogenation property of Mg(BH4)2 as a function of the added TiCl3 content was systematically investigated from viewpoints of kinetics and thermodynamics. The dehydrogenation temperature decreased when the TiCl3 content x was increased from 0.02 to 0.20 mol, and the initial dehydrogenation temperature notably decreased to approximately 350 K at x=0.20. The main improvement effects of TiCl3 on the dehydrogenation properties of Mg(BH4)2 changed from kinetic to thermodynamic aspects with the increasing addition content. That is, Mg(BH4)2 tended to react with TiCl3 to produce thermodynamically unstable TixMg(1-3x/2)(BH 4)2 (x=0̃0.67). With relatively high addition content (x≥>0.10), thermodynamic destabilization of Me(BH4)? becomed more dominant. However, with relatively low addition content (x<0.10). TiB? formed from the dehydrogenation of TixMg( 1 3x/ 2) (BH4)2 mainly showed kinetic improvement effect.

本文言語English
ページ(範囲)627-630
ページ数4
ジャーナルNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
77
12
DOI
出版ステータスPublished - 2013 12月

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 金属および合金
  • 材料化学

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