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Title: Liquid suspensions of reversible metal hydrides

Abstract

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 gasmore » phase.« less

Inventors:
; ;
Issue Date:
OSTI Identifier:
6860248
Application Number:
ON: DE84014358
Assignee:
Dept. of Energy ERA-09-035260; EDB-84-115882
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; 36 MATERIALS SCIENCE; HYDROGEN STORAGE; LANTHANUM HYDRIDES; NICKEL HYDRIDES; TITANIUM HYDRIDES; LANTHANUM ALLOYS; LIQUIDS; NICKEL ALLOYS; SORPTIVE PROPERTIES; SUSPENSIONS; TITANIUM ALLOYS; ALLOYS; DISPERSIONS; FLUIDS; HYDRIDES; HYDROGEN COMPOUNDS; LANTHANUM COMPOUNDS; NICKEL COMPOUNDS; RARE EARTH ALLOYS; RARE EARTH COMPOUNDS; STORAGE; SURFACE PROPERTIES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS 080201* -- Hydrogen-- Chemisorption Storage; 360105 -- Metals & Alloys-- Corrosion & Erosion

Citation Formats

Reilly, J.J., Grohse, E.W., and Winsche, W.E. Liquid suspensions of reversible metal hydrides. United States: N. p., 1983. Web.
Reilly, J.J., Grohse, E.W., & Winsche, W.E. Liquid suspensions of reversible metal hydrides. United States.
Reilly, J.J., Grohse, E.W., and Winsche, W.E. Thu . "Liquid suspensions of reversible metal hydrides". United States.
@article{osti_6860248,
title = {Liquid suspensions of reversible metal hydrides},
author = {Reilly, J.J. and Grohse, E.W. and Winsche, W.E.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {12}
}