Hydrogen storage behavior of ZrNi 70/30 and ZrNi 30/70 composites

Fine Structure in Multi-Phase Zr8Ni21-Zr7Ni10-Zr2Ni7 Alloy Revealed by Transmission Electron Microscope

“…Beside the Laves phase-based pseudo-binary AB 2 , different Zr-Ni intermetallics (with or without substitution) are also of great interest for the improvement in both capacity and high-rate dischargeability (HRD) of the MH alloys. For example, ZrNi 5 [8], Zr 2 Ni 7 [9], ZrNi 3 [10], Zr 8 Ni 21 [11,12], ZrNi 2 [13,14], Zr 7 Ni 10 [15,16,17], Zr 9 Ni 11 [18], ZrNi [19,20], and Zr 2 Ni [21] with different partial substitutions were studied as MH alloys for the potential application in Ni/MH batteries. Out of these Zr-Ni intermetallic alloys, Zr 8 Ni 21 is very important since its stoichiometry is ideal for room temperature applications, such as the Ni/MH battery.…”

Structure and Deuterium Desorption from Ca3Mg2Ni13 Deuteride: A Neutron Diffraction Study

“…23 Similarly, in the Pr−Mg−Ni system, the Pr 1.5 Mg 0.5 Ni 7 (m = 1, n = 2) and Pr 3.75 Mg 1. 25 Ni 19 (m = 1, n = 3) compounds derived from binary Pr 2 Ni 7 and Pr 5 Ni 19 demonstrate much improved thermodynamic properties for hydrogen storage. 33 Note that only compounds with m = 1 have been reported for these ternary systems.…”

“…As a prototype of X–Mg–Ni systems, the La–Mg–Ni system has attracted extensive attention which is motivated for both fundamental interests and potential applications. − Using density functional theory calculations, Crivello et al predicted the structural stability of various compounds with m = 1 and n = 1, 2, 3 that may be formed in the La–Mg–Ni system . Indeed, ternary compounds such as La 2 MgNi 9 ( m = 1, n = 1), La 3 MgNi 14 ( m = 1, n = 2), and La 4 MgNi 19 ( m = 1, n = 3) have been synthesized experimentally, and crystal structures of these compounds have the same structure as the corresponding binary structures, LaNi 3 , La 2 Ni 7 , and La 5 Ni 19 , respectively .…”

Experiment and Modeling of Water Vapour Decomposition on ZrNi5 Alloy

“…7, the linearity is very good too. The slope is known as apparent rate constant, K. K is 0.33, 0.20 and 0.09 eq (7) eq (8) eq (9) eq (10) G(X) time(min) Fig. 6.…”

“…It is necessary to find a less expensive material with the similar property. ZrNi5 may be a good candidate, for it doesn't hydrogenate unless at very high pressure and has a little hydrogen inventory 9,10 and the attracting advantage is the low price, only 1/30 to st909.…”