High Active Hydrogen Storage Alloy Mg₂NiH₄ and Mg₂Ni Synthesized at Temperatures Lower than 733 K

Abstract:

Hydrogen storage alloys Mg2Ni and Mg2NiH4 were synthesized at below 733 K by the process HCS. The product was examined by X-Ray diffraction and hydriding / dehydriding dynamics was tested. The result reveals that (1) High pure products of Mg2Ni and Mg2NiH4 can be obtained even at temperature 673 K and 0.1 MPa argon and 1.0 MPa hydrogen, respectively; (2) Both products are high active absorbing hydrogen > 3.2 mass % at 603 K without activation process. The result is very attractive due to the low temperature and pressure for the production of hydrogen storage alloys.

• Periodical: Materials Science Forum (Volumes 488-489)
• Pages: 901-904
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.488-489.901
• Online since: July 2005
• Authors: Xiao Feng Liu, Li Quan Li
• Keywords: Gas-Solid Reaction, Hydrogen-Storage Material, Intermetallic

References

[1] L. Li, T. Akiyama and J. Yagi: J. Alloys & Compounds Vol. 308 (2000), p.98.

[2] I. Saita, L. Li and T. Akiyama: J. Alloys & Compounds Vol. 356-357 (2003), p.490.

[3] L. Li, I. Saita, and T. Akiyama: J. Alloys & Compounds Vol. 345 (2002), p.189.

[4] L. Li, X. Liu: Chinese patent Appl. No. 2004100418625, 2004 0.

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