Abstract: As a promising clean fuel for vehicles, hydrogen can be used for propulsion, either directly or in fuel cells. Hydrogen storage compositions having high storage capacity, good dehydrogenation kinetics, and hydrogen release and uptake reactions which are reversible are disclosed and described. Generally a hydrogen storage composition of a metal aluminum hexahydride and a metal amide can be used. A combined system (Li3AIH6/3LiNH2) with a very high inherent hydrogen capacity (7.3 wt %) can be carried out at moderate temperatures, and with approximately 95% of that inherent hydrogen storage capacity (7.0%) is reversible over repeated cycling of release and uptake.

Abstract: Processes for coating metal surfaces are disclosed and described. Applying a metal powder (24) to a metal substrate (12) under plasma transferred arc conditions can promote in-situ reaction between these materials. A substantially nonporous intermetallic alloy coating (28) can be formed in this manner and is particularly suited to Fe, Ni, and Co based intermetallic alloys.

Abstract: A light metal solid solution alloy for reversible hydrogen storage can include a light metal solid solution alloy of M1 and M2. M1 and M2 are different and independently selected from the group consisting of Li, Mg, Al, Na, Be, and Si. Furthermore, the starting materials and formation conditions are chosen such that the resulting alloy has a hydrogenated state and a dehydrogenated state which are each solid solutions.

Abstract: A process for forming lithium hydride for use in storing and producing hydrogen is presented. The process includes reacting lithium oxide with water to form a regenerated lithium hydroxide and reacting the regenerated lithium hydroxide with magnesium to form magnesium oxide and a regenerated lithium hydride. The magnesium oxide can be regenerated to form magnesium. The process can further include reacting lithium hydride to form hydrogen and lithium oxide. Such hydrogen production can include reaction between lithium hydride and lithium hydroxide, and/or reaction between lithium hydride and water.

Abstract: This chemical vapor synthesis process was designed so that a metal carbide precursor and a secondary metal precursor are separately or together fed into each evaporator in a reactor by specially designed precursor feeders, either simultaneously or sequentially. The reduction and carburization of the vaporized precursors by gaseous mixtures produces carbide-metal nanocomposite powders. The product can be a very uniform mixture of the constituent powders or a uniform agglomerate, which is important to ensure a high quality of bulk cemented metal carbide product after consolidation and sintering. These nanocomposite powders can be readily characterized using XRD, carbon analyzer and TEM.

Abstract: As a promising clean fuel for vehicles, hydrogen can be used for propulsion, either directly or in fuel cells. Hydrogen storage compositions having high storage capacity, good dehydrogenation kinetics, and hydrogen release and uptake reactions which are reversible are disclosed and described. Generally a hydrogen storage composition of a metal aluminum hexahydride and a metal amide can be used. A combined system (Li3AlH6/3LiNH2) with a very high inherent hydrogen capacity (7.3 wt %) can be carried out at moderate temperatures, and with approximately 95% of that inherent hydrogen storage capacity (7.0%) is reversible over repeated cycling of release and uptake.

Abstract: The invention provides methods, compositions, and systems for a reversible hydrogen storage material. The hydrogen storage material contains a lithium-magnesium compound, having LiMgN in a dehydrogenated state and a hydrogenated lithium magnesium product in a hydrogenated state, where the hydrogenated and dehydrogenated states are reversible. The lithium-magnesium compound is formed by reacting MgH2 and LiNH2 in a substantially inert atmosphere in amounts sufficient to obtain a hydrogen adsorption of at least 3 wt %, and in many cases up to about 8.1 wt %.

Abstract: A method and apparatus for solvent extraction where the heavy and light phases are directed counter-currently into vertical mixing zones created by high-strength gas jets injecting gas up through the liquids to create an emulsion plume between the two liquids. The gas jets are at certain intervals along the countercurrent flow paths of the liquids with settling zones on either side of each the mixing zone. The phases disengage in the settling zones, flowing from the mixing zone in opposite countercurrent directions. The system has minimal backmixing, no moving parts, and good contact between phases.