High Active Hydrogen Storage Alloy Mg2NiH4 and Mg2Ni Synthesized at Temperatures Lower than 733 K
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.
W.Ke, E.H.Han, Y.F.Han, K.Kainer and A.A.Luo
X. F. Liu and L. Q. Li, "High Active Hydrogen Storage Alloy Mg2NiH4 and Mg2Ni Synthesized at Temperatures Lower than 733 K", Materials Science Forum, Vols. 488-489, pp. 901-904, 2005