Two-component structures providing fast-low temperature charging of Mg with hydrogen
A hydrogen storage material is provided, the hydrogen storage material comprises a hydride-forming solid disposed in a film, a hydrogen-diffusing solid media disposed in the film with the hydride-forming solid, and a high density of interfaces between the hydride-forming solid and the hydrogen-diffusing solid media in the film. The hydrogen storage material may be made by co-depositing the hydride-forming solid and the hydrogen-diffusing solid media to form the film having different solid phases of the hydride-forming solid and the hydrogen-diffusing solid media and a high density of interfaces therebetween.
1. A hydrogen storage material comprising:
a hydride-forming solid disposed in a film;
a hydrogen-diffusing solid media disposed in the film with said hydride-forming solid; and
a high density of interfaces between said hydride-forming solid and said hydrogen-diffusing solid media in the film.
2. The hydrogen storage material of claim 1 wherein said hydride-forming solid is selected from the group consisting of Mg, Li, Na, and Al.
3. The hydrogen storage material of claim 2 wherein said hydride-forming solid comprises Mg.
4. The hydrogen storage material of claim 1 wherein said hydrogen-diffusing solid media comprises a transitional metal.
5. The hydrogen storage material of claim 1 wherein said hydrogen-diffusing solid media is selected from the group consisting of Fe, Ti, V, Mn, Co, Ni, Cu, and Pd.
6. The hydrogen storage material of claim 5 wherein said hydrogen-diffusing solid media comprises Fe.
7. The hydrogen storage material of claim 1 wherein said hydride-forming solid comprises Mg and said hydrogen-diffusing solid media comprises Fe.
8. The hydrogen storage material of claim 1 wherein said hydride-forming solid and said hydrogen-diffusing solid media are disposed in the film at an atomic ratio between about 0.95 and about 0.85.
9. The hydrogen storage material of claim 1 wherein said hydride-forming solid is Mg and said hydrogen-diffusing solid media hydrogen storage material is Fe, said Mg and said Fe being present in the film at an atomic ratio of Mg 1-x Fe x wherein x is between about 0.05 and about 0.15.
10. The hydrogen storage material of claim 1 made by co-depositing said hydride-forming solid and said hydrogen-diffusing solid media to form the film.
11. A hydrogen storage material made by co-depositing a hydride-forming solid and a hydrogen-diffusing solid media to form a film having a high density of interfaces between a first phase comprising said hydride-forming solid and a second phase comprising said hydrogen-diffusing solid media.
12. The hydrogen storage material of claim 11 wherein said hydride-forming solid and said hydrogen-diffusing solid media form separate and distinct solid phases upon co-deposition.
13. The hydrogen storage material of claim 12 wherein said hydride-forming solid is Mg and said hydrogen-diffusing solid media is Fe.
14. A hydrogen storage material comprising a hydride-forming solid and a hydrogen-diffusing solid media, said hydride-forming solid and said hydrogen-diffusing solid media forming different solid phases with a high density of interfaces therebetween upon forming said hydrogen storage material by co-depositing said hydride-forming solid and said hydrogen-diffusing solid media.
15. The hydrogen storage material of claim 14 wherein said hydride-forming solid is selected from the group consisting of Mg, Li, Na, and Al.
16. The hydrogen storage material of claim 15 wherein said hydride-forming solid comprises Mg.
17. The hydrogen storage material of claim 14 wherein said hydrogen-diffusing solid media comprises a transitional metal.
18. The hydrogen storage material of claim 14 wherein said hydrogen-diffusing solid media is selected from the group consisting of Fe, Ti, V, Mn, Co, Ni, Cu, and Pd.
19. The hydrogen storage material of claim 18 wherein said hydrogen-diffusing solid media comprises Fe.
20. The hydrogen storage material of claim 15 wherein said hydride-forming solid is Mg and said hydrogen-diffusing solid media material is Fe, said Mg and said Fe being present in said hydrogen storage material at an atomic ratio of Mg 1-x Fe x wherein x is between about 0.05 and about 0.15.