Liquid suspensions of reversible metal hydrides
The reversibility of the process M + x/2 H/sub 2/ ..-->.. MH/sub x/, where M is a metal hydride former that forms a hydride MH/sub x/ in the presence of H/sub 2/, generally used to store and recall H/sub 2/, is found to proceed under a liquid, thereby to reduce contamination, provide better temperature control and provide in situ mobility of the reactants. Thus, a slurry of particles of a metal hydride former with an inert solvent is subjected to temperature and pressure controlled atmosphere containing H/sub 2/, to store hydrogen (at high pressures) and to release (at low pressures) previously stored hydrogen. The direction of the flow of the H/sub 2/ through the liquid is dependent upon the H/sub 2/ pressure in the gas phase at a given temperature. When the former is above the equilibrium absorption pressure of the respective hydride the reaction proceeds to the right, i.e., the metal hydride is formed and hydrogen is stored in the solid particle. When the H/sub 2/ pressure in the gas phase is below the equilibrium dissociation pressure of the respective hydride the reaction proceeds to the left, the metal hydride is decomposed and hydrogen is released into the gas phase.
- DOE Contract Number:
- AC02-76CH00016
- Assignee:
- Dept. of Energy
- Patent Number(s):
- None
- Application Number:
- ON: DE84014358
- OSTI ID:
- 6860248
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
080201* -- Hydrogen-- Chemisorption Storage
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
DISPERSIONS
FLUIDS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROGEN STORAGE
LANTHANUM ALLOYS
LANTHANUM COMPOUNDS
LANTHANUM HYDRIDES
LIQUIDS
NICKEL ALLOYS
NICKEL COMPOUNDS
NICKEL HYDRIDES
RARE EARTH ALLOYS
RARE EARTH COMPOUNDS
SORPTIVE PROPERTIES
STORAGE
SURFACE PROPERTIES
SUSPENSIONS
TITANIUM ALLOYS
TITANIUM COMPOUNDS
TITANIUM HYDRIDES
TRANSITION ELEMENT COMPOUNDS