Process for the storage of hydrogen using a system that strikes a balance between a material that consists of magnesium elements and magnesium nitrogen elements and nitrogen and the corresponding hydride
US7608239B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Feb 6, 2006 |
| Grant date | Oct 27, 2009 |
| Priority date | — |
| Expiry date | Aug 14, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/36
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for the reversible storage of hydrogen, comprising bringing into contact a material that consists of magnesium elements and nitrogen elements with gaseous hydrogen leading to the formation of an amide or corresponding hydrides, comprises the use of a balanced system corresponding to the formula:Mg3N2Mg(NH2)2+2MgHn where n is the number of hydrogen atoms corresponding to the stoichiometry of the hydride or hydrides formed. The material can also comprise, in a minor proportion, at least one transition metal of groups 3 to 12 of the periodic table that is selected from among Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn and Pd.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.