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Hydrogen Storage For hydrogen to be successfully as an energy carrier, the technology for hydrogen storage must be improved. A key factor in the use of hydrogen, particularly in the transport sector, is to create lightweight hydrogen storage media with large storage capacity, and where hydrogen can be put in and taken out of the material at moderate temperatures and pressures.
Hydrogen can be stored in three states:
Metal hydrides is a very promising medium for hydrogen storage because of the high volumetric density of hydrogen along with the ability to store hydrogen at atmospheric pressure at room temperature. Hydrogen storage in metal hydrides is particulary interesting in conjunction with small and mobile storage units and batteries. An important task is to understand how metal hydrides are formed, so that new types of meetal hydrides with improved properties can be synthesises for various purposes. The hydrogenation (the process when hydrogen enters a metal) properties of one element always differ from those of another element. By mixing the right elements into new compunds, the properties of metal hydrides can be optimized for a high hydrogen uptake and release at moderate conditions. To attain the necessary knowledge of material, neutron, X-ray and electron beams are most often used probe it. These methods offer a way to observe the inside of a material on the atomic scale. Worldwide there is vigorous research on the field of metal hydrides. IFE has had a significant presence in this field since the 1950s. |
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