Patent application number | Description | Published |
20090278086 | Nanocrystalline Composite for Storage of Hydrogen - The invention relates to a method for preparation of a material adapted to reversible storage of hydrogen, including steps consisting of providing a first powder of a magnesium-based material, hydrogenating the first powder to convert at least part of the first powder into metal hydrides, mixing the first hydrogenating powder with a second powder additive, the proportion by mass of the second powder in the mix obtained being between 1% and 20% by mass, wherein the additive is formed from an alloy with a centred cubic structure based on titatnium, vanadium and at least one other metal chosen from chromium or manganese, and grinding the mix of first and second powders. | 11-12-2009 |
20100150822 | PULVERULENT INTERMETALLIC MATERIALS FOR THE REVERSIBLE STORAGE OF HYDROGEN - The present invention relates to pulverulent materials suitable for storing hydrogen, and more particularly to a method of preparing such a material, in which: (A) a composite metallic material having a specific granular structure is prepared by co-melting the following mixtures: a first metallic mixture (m1), which is an alloy (a1) of body-centred cubic crystal structure, based on titanium, vanadium, chromium and/or manganese, or a mixture of these metals in the proportions of the alloy (a1); and a second mixture (m2), which is an alloy (a2), comprising 38 to 42% zirconium, niobium, molybdenum, hafnium, tantalum and/or tungsten and 56 to 60 mol % of nickel and/or copper, or else a mixture of these metals in the proportions of the alloy (a2), with a mass ratio (m2)/(m1+m2) ranging from 0.1 wt % to 20 wt %; and (B) the composite metallic material thus obtained is hydrogenated, whereby the composite material is fragmented (hydrogen decrepitation). | 06-17-2010 |
20100266488 | HYDROGEN STORAGE MATERIAL MADE FROM MAGNESIUM HYDRIDE - A compacted material includes magnesium hydride and expanded natural graphite and a method for preparing such a material including the steps which consist in: (i) mixing a magnesium hydride or powdered magnesium with a powdered graphite; and (ii) shaping the mixture by compaction. It also proposes the use of the material for hydrogen storage and a method for hydrogen storage and release from storage including the steps which consist in: (a) introducing the material into a suitable hydrogen tank; (b) placing the material under hydrogen pressure in pressure and temperature conditions that enable the hydrogen to be absorbed by the material; and (c) desorbing the hydrogen from the material in pressure and temperature conditions permitting the desorption of the material. | 10-21-2010 |
20100326992 | HYDROGEN STORAGE TANK - The invention relates to a tank of the type that comprises a container ( | 12-30-2010 |
20110020661 | FE-SI-LA ALLOY HAVING EXCELLENT MAGNETO-CALORIC PROPERTIES - The invention relates to a Fe—Si—La alloy having the following atomic composition: (La | 01-27-2011 |
20120061397 | Adiabatic Tank For Metal Hydride - The invention relates to a safe hydrogen-storing tank that is easy to manufacture and enables the quick kinetic absorption of hydrogen, which reduces the variations in volume and has a low cost in terms of material and energy. The invention has the aim of providing a tank for storing hydrogen, including a hydrogen inlet ( | 03-15-2012 |
20120201719 | TANK FOR STORING AND WITHDRAWING HYDROGEN AND/OR HEAT - The present invention relates to a tank for storing and withdrawing hydrogen by means of a reversible hydriding/dehydriding reaction, said tank consisting of a thermally insulated chamber that includes a plurality of elements ( | 08-09-2012 |
20120288440 | PULVERULENT INTERMETALLIC MATERIALS FOR THE REVERSIBLE STORAGE OF HYDROGEN - The present invention relates to pulverulent materials suitable for storing hydrogen, and more particularly to a method of preparing such a material, in which: (A) a composite metallic material having a specific granular structure is prepared by co-melting the following mixtures: a first metallic mixture (m1), which is an alloy (a1) of body-centred cubic crystal structure, based on titanium, vanadium, chromium and/or manganese, or a mixture of these metals in the proportions of the alloy (a1); and a second mixture (m2), which is an alloy (a2), comprising 38 to 42% zirconium, niobium, molybdenum, hafnium, tantalum and/or tungsten and 56 to 60 mol % of nickel and/or copper, or else a mixture of these metals in the proportions of the alloy (a2), with a mass ratio (m2)/(m1+m2) ranging from 0.1 wt % to 20 wt %; and (B) the composite metallic material thus obtained is hydrogenated, whereby the composite material is fragmented (hydrogen decrepitation). | 11-15-2012 |
20130111736 | METHOD FOR PREPARING A MATERIAL FOR STORING HYDROGEN, INCLUDING AN EXTREME PLASTIC DEFORMATION OPERATION - A material for storing hydrogen is prepared by a method including an extreme plastic deformation operation selected from cold-rolling, quick-forging and extrusion-bending performed on a metallic material selected from among a metal and an alloy containing said metal, or on a compound containing a metal material selected from among a metal and an alloy containing said metal and to which a hydride of said metal or a hydride of said alloy has been added. When the extreme plastic deformation operation is carried out on the metallic material, it is followed by an operation of adding, to the metal material, a hydride of said metal or a hydride of said alloy, as well as by a dispersing operation. | 05-09-2013 |