Hydrogenation of C14 Laves phase alloy: CaLi2

Xiangfeng Liu, Kohta Asano, Naoyoshi Terashita, Etsuo Akiba

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The CaLi2 alloy which was prepared by the induction melting method has been successfully hydrogenated. The CaLi2 alloy synthesized had a hexagonal C14-type Laves phase structure and absorbed 6.8-7.1 mass% hydrogen under the temperature range from 273 K to 393 K. The hydrogenated CaLi2 which consisted of CaH2 and LiH hydride phases did not desorb hydrogen under 10 kPa-H2 at the same temperatures. The hydrogen absorption kinetics measured under 3.1 MPa-H2 at room temperature showed that the hydrogen content reached to 6 mass% in 10 s. No obvious hydrogen desorption from the hydrogenated CaLi2 was observed even after evacuation for 20 h at 623 K.

Original languageEnglish
Pages (from-to)1472-1475
Number of pages4
JournalInternational Journal of Hydrogen Energy
Volume34
Issue number3
DOIs
Publication statusPublished - Feb 2009

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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