Room temperature gaseous hydrogen storage properties of Mg-based metallic glasses with ultrahigh Mg contents

Recent advances on the thermal destabilization of Mg-based hydrogen storage materials

“…Therefore, the introduction of appropriate metal hydrides/dopants was proposed to further modify its thermodynamic properties. The widely studied Mg-based composites include Mg-Ni-RE, [97][98][99] 103 and MgH 2 -NaAlH 4 . 104…”

“…Mg-RE-Ni amorphous alloys prepared by melt-spinning are typical examples with a hydrogen density as high as 5.5 wt% at 573 K, and the microstructure of the as-spun alloys consist of an amorphous matrix containing MgH 2 , Mg 2 NiH 4 and REH x . 97 Lin et al 98 found that the Mg-Ce-Ni metallic glasses (MGs) can reversibly absorb and desorb about 0.2-0.4 wt% H at room temperature without activation, and the hydrogenation capacity of the glassy Mg-based alloy is twice that of the corresponding crystalline alloy due to its free volume and disordered atomic structure.…”

Hydrogen storage properties of Mg–Ce–Ni nanocomposite induced from amorphous precursor with the highest Mg content

“…Till now, no systematical work has been done on the effect of RE and Ni contents on the GFA for Mg-rich MgeREeNi system, and it is worthy to reveal such effect to design materials reasonably. Very recently, we found that MgeCeeNi system showed very good GFA with record high Mg content of 90 at.% [24]. The high Mg content is suitable to test the effect of Ce and Ni contents on the GFA of MgeCeeNi system in the Mg-rich corner.…”

Effect of CeH2.73-CeO2 Composites on the Desorption Properties of Mg2NiH4

“…where α is the ratio of reacted material to total material, m and B are constants. The fitted m is 1.085, which is very close to 1.07, indicating the oxidation of CeH 2.73 at room temperature is a three-dimensional interface reaction process (Lin et al, 2012b). For the S4 sample, the relative content of CeH 2.73 is 54.2 wt%, and the relative content of CeO 2 phase is 45.8 wt%, indicating almost the same molar ratio of cerium hydride and oxide when the oxidation time is around 3 min.…”