magnesium hydride

magnesium hydride

[mag′nē·zē·əm ′hī‚drīd]
(inorganic chemistry)
MgH2 A hydride compound formed from the metal magnesium; it decomposes violently in water, and in a vacuum at about 280°C.
References in periodicals archive ?
"These powders were prepared by the Center's compound for chemically induced magnesium hydride adsorption by ultra-smooth granules of the glass alloy (ZrNiPd)," Al-Sayegh added.
Boldyrev, "A study of the electron-beam-induced decomposition of magnesium hydride single crystals," Materials Letters, vol.
[12] evaluated the hydrogenation characteristics of an Mg8at% Al alloy powder synthesised using the electro deposition technique to investigate the effect of Al addition on the stability of magnesium hydride. The characterization of the hydrogenation behaviour within the 180C280C temperature range and the subsequent micro structural analysis elucidated that the amount of Al present in the hydride decreased with the increasing temperature.
In fact, magnesium hydride Mg[H.sub.2] contains 7.6 wt.% hydrogen [4], but it suffers from extremely slow hydriding kinetics.
Sigalas, "Ab initio study of magnesium and magnesium hydride nanoclusters and nanocrystals: examining optimal structures and compositions for efficient hydrogen storage," Journal of the American Chemical Society, vol.
The 63 papers report on such topics as synthesizing novel chromium oxide using a hydrothermal method and and analyzing its magnetism and structure, phase relations of FeSs-VS2 system and the new phase of the defect troilite structure, particularities of structure and stability of cationic-ordered layered titanates, theoretical studies on the role of transition elements in the stability of magnesium hydride, half a century of nano-anti-ferromagnetism: Richardson's phenomenon and Neel's models, and characterization phenomena and magnetic phase transitions in rare earth intermetallics.
However, there is evidence that [Mg.sup.+] and [H.sup.+] also form, leading to the production of magnesium hydride, [MgH.sub.2], which is oxidized or hydrolyzed to Mg[(OH).sub.2], but not before it is involved in further dissolution of the metal.
In the past researchers had some success with magnesium hydride on a nanoscale, he said, but the approach was unsuccessful because of the high catalyst release temperature.
Laboratories in Malibu, Calif., researchers are experimenting with hydrides for GM, HRL is testing a mixture of lithium borohydride and magnesium hydride, both of which yield hydrogen.
According to FSEC, Slattery, a graduate of the Florida Institute of Technology and the first woman to win the FSEC award, has pursued hydrogen storage innovations using magnesium hydride, lanthanum magnesium hydride and lithium aluminum hydride.
While the technology was demonstrated with lithium hydride, toward the end of the development program, magnesium hydride was evaluated and found to offer many performance advantages of lithium hydride and many addition handling and cost advantages over lithium hydride.
Kang, "Synthesis and enhanced hydrogen desorption kinetics of magnesium hydride using hydriding chemical vapor synthesis," Journal of Alloys and Compounds, vol.