Crystal structure and hydrogen absorption–desorption properties of Ca3Mg2Ni13

Crystal Structure of Pr3MgNi14Dx Studied by in Situ Neutron Diffraction

“…The crystal structure of Ca 3 Mg 2 Ni 13 D 15.6 with R 3̅ m symmetry was reported by Zhang et al, , who determined the deuterium occupation in Ca 3 Mg 2 Ni 13 D 15.6 by neutron diffraction. The structural model of the deuteride is the same as that of the original alloy.…”

“…Yartys and Denys determined the crystal structure of the deuteride Pr 2 MgNi 9 with the PuNi 3 -type structure by neutron diffraction. 9 The crystal structure of Pr 2 MgNi 9 D 12.4 was refined using the PuNi 11,12 who determined the deuterium occupation in Ca 3 Mg 2 Ni 13 D 15.6 by neutron diffraction. The structural model of the deuteride is the same as that of the original alloy.…”

Hydrogen absorption–desorption features and degradation mechanism of ErNi3 compound

“…Hence, adding Mg to ErNi 3 compounds, like other RÀMgÀNi compounds [26][27][28][29][30][31][32][33][34][35][36][37][38][39], is also necessary for hydrogen storage applications.…”

Structural investigation and electrochemical properties of La5−xCaxMg2Ni23 (x=0, 1, 2 and 3) hydrogen storage alloys

“…It is interesting that the Ce 2 Ni 7 -type phase entirely disappears in the Ca-substituted La 5 Mg 2 Ni 23 alloys. It was reported that the A 2 B 7 -type La-Mg-Ni phase has Ce 2 Ni 7 -type or Gd 2 Co 7 -type structure [19], while the A 2 B 7 -type Ca-Mg-Ni phase has only the Gd 2 Co 7 -type structure [9]. Therefore, the Casubstituted Ce 2 Ni 7 -type phase is unstable and transforms into the Gd 2 Co 7 -type phase in the La 5−x Ca x Mg 2 Ni 23 (x = 1, 2 and 3) alloys.…”

“…However, the La 5 Mg 2 Ni 23 structure has not been confirmed up to now. In the present work, therefore, the La 5 Mg 2 Ni 23 alloy has been prepared at first for an attempt to obtain the La 5 binations [8,9]. Recently, we found a new ternary intermetallic compound Ca 3 Mg 2 Ni 13 crystallizing in space group R3m [9].…”