Reactive milling process for the manufacture of a hydrogen...

Details Reactive milling process for the manufacture of a hydrogen... Reactive milling process for the manufacture of a hydrogen...

2003-08-01

2009-06-02

Miller, Bena (Department: 3725)

Solid material comminution or disintegration

Processes

Miscellaneous

Reexamination Certificate

active

07540439

ABSTRACT:
A process for the manufacture of a hydrogen storage material comprises comminuting a source of magnesium under a reducing atmosphere for a time sufficient to produce particles of a required particle size and crystallite size. At least one reducible PGM compound is introduced and substantially reduced during comminution such that it is distributed substantially at the surface of the particles.

REFERENCES:
patent: 3785801 (1974-01-01), Benjamin
patent: 4798718 (1989-01-01), Bogdanovic
patent: 6165643 (2000-12-01), Doyle et al.
patent: WO-96/23906 (1996-08-01), None
F. von Zeppelin et al., “Hydrogen desorption kinetics of nanostructured MgH2composite materials,”Journal of Alloys and Compounds, vols. 330-332, Jan. 17, 2002, pp. 723-726.
A. Zaluska et al., “Nanocrystalline magnesium for hydrogen storage,”Journal of Alloys and Compounds, vol. 288, Issues 1-2, Jun. 29, 1999, pp. 217-225.
S. Orimo et al., “Notable Hybriding Properties of a Nanostructured Composite Material of the Mg2Ni-H System Synthesized by Reactive Mechanical Grinding,”Acta Mater., vol. 45, No. 1, 1997, pp. 331-341.
L Zaluska et al., “Hydrogen absorption in nanocrystalline Mg2Ni formed by mechanical alloying,”Journal of Alloys and Compounds, vol. 217, Issue 2, Feb. 1, 1995, pp. 245-249.

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