Hydriding combustion synthesis of Mg2NiH4

Hydriding combustion synthesis of Mg2Ni1−Fe hydride

“…5 shows the XRD patterns of Mg 2 Ni 1−x Fe x (x = 0.25, 0.5 and 0.75) hydrides synthesized by HCS after a BM pretreatment. The identified chief peaks of all samples were Mg 2 FeH 6 as well as Mg 2 NiH 4 [7], while a small amount of unreacted iron, and either magnesium or its hydride were present.…”

Mg–Ni–Cu mixtures for hydrogen storage: A kinetic study

“…These binary and ternary alloys were prepared starting from the pure metallic powders by both conventional and non-conventional solid state techniques (melting and casting [14], hydriding combustion synthesis [16,17,[22][23][24][25], melt spinning followed by quick crystallisation of the prepared amorphous alloy [20]), in the attempt to tailor the microstructure of the active species, so improving their sorption properties. Up to now, high energy ball milling (BM) is the most widely used synthetic route, since it allows, in a single step, the formation of the desired alloys, the reduction of the grain size of the powders down to nanometric scale and the introduction of a great amount of defects in the lattice of the active phases [3,[6][7][8][26][27][28][29].…”

Electrochemical properties of Mg-based hydrogen storage alloys prepared by hydriding combustion synthesis and subsequent mechanical milling (HCS+MM)

“…However, it usually takes a long time and the sample is easily contaminated during the milling process. Hydriding combustion synthesis (HCS) was developed in 1997 by Akiyama et al, which has been regarded recently as an innovative processing and fabrication to produce magnesium-based hydrogen storage alloys [6][7][8][9]. Some advantages of HCS are short time and lower energy requirement of the process and high purity and activity of the product [10].…”