Preparation of Mg-based hydrogen storage materials from metal nanoparticles

Enhancing superconducting properties of MgB2pellets by addition of amorphous magnetic Ni–Co–B nanoparticles

“…Phase diagrams of Mg-Ni system show that Mg 2 Ni occurs as a stable phase at concentrations of Ni less than 35% [35][36][37]. For Mg-Co system, there is only one stable compound, MgCo 2 [35][36][37][38].…”

Nanotechnology in Mg-based materials for hydrogen storage

“…Then after evacuation, we will obtain alloy samples. By this way, we obtained Mg 2 NiH 4 , Mg 2 CoH 5 and 3MgH 2 +MgCu 2 hydride systems and Mg 2 Ni, Mg 2 Co and Mg 2 Cu alloy systems ( Figure 10) [53,[56][57][58] From the TEM images in Figure 10, we may see that the Mg 2 Ni, Mg 2 Co and Mg 2 Cu alloys are with an average size about 50 to 200 nm, which is smaller than the original Mg particles. This means during hydrogenation and then dehydrogenation of Mg-M mixture, the samples will crack into smaller particles.…”

“…Metal nanoparticles can be synthesized from bulk metals by the hydrogen plasma metal reaction method [53]. For this synthesis, a metal was vaporized by a hydrogen plasma in a reaction chamber under a mixture of Ar and H 2 atmosphere.…”

Preparation and characterization of nanocrystalline Mg2FeH6

“…Mg-based transition-metal complex hydrides such as Mg 2 NiH 4 , Mg 2 CoH 5 , and Mg 2 FeH 6 , which have been rationalized by the 18-electron counting rules, have been considered as promising hydrogen-storage materials due to their high hydrogen capacity (gravimetric 5.47 wt% hydrogen and volumetric 150 kg H 2 m −3 ) and low cost [1][2][3][4][5]. The preparation of Mg 2 FeH 6 becomes a rather difficult task and has attracted much attention.…”