Hydride compositions
Abstract
A composition for use in storing hydrogen, and a method for making the composition. The composition comprises a mixture of two or more hydrides, each hydride having a different series of hydrogen sorption isotherms that contribute to the overall isotherms of the mixture. The hydrides are chosen so that the isotherms of the mixture have regions wherein the hydrogen equilibrium pressure increases with increasing hydrogen, preferably linearly. The isotherms of the mixture can be adjusted by selecting hydrides with different isotherms and by varying the amounts of the individual hydrides, or both. Preferably, the mixture is made up of hydrides that have isotherms with substantially flat plateaus and in nearly equimolar amounts. The composition is activated by degassing, exposing to hydrogen and then heating at a temperature below the softening temperature of any of the. constituents so that their chemical and structural integrity is preserved. When the composition is used to store hydrogen, its hydrogen content can be found simply by measuring P.sub.H.sbsb.2 and determining H/M from the isothermic function of the composition.
- Inventors:
-
- North Augusta, SC
- Issue Date:
- Research Org.:
- Savannah River Site (SRS), Aiken, SC (United States)
- OSTI Identifier:
- 870128
- Patent Number(s):
- 5460745
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- AC09-89SR18035
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- hydride; compositions; composition; storing; hydrogen; method; comprises; mixture; hydrides; series; sorption; isotherms; contribute; overall; chosen; regions; equilibrium; pressure; increases; increasing; preferably; linearly; adjusted; selecting; varying; amounts; individual; substantially; flat; plateaus; nearly; equimolar; activated; degassing; exposing; heating; temperature; below; softening; constituents; chemical; structural; integrity; preserved; store; content; found; simply; measuring; sbsb; determining; isothermic; function; hydrogen content; pressure increase; softening temperature; substantially flat; flat plate; composition comprises; temperature below; structural integrity; storing hydrogen; hydride composition; hydrogen sorption; pressure increases; molar amount; equimolar amounts; molar amounts; sorption isotherms; /252/206/423/
Citation Formats
Lee, Myung W. Hydride compositions. United States: N. p., 1995.
Web.
Lee, Myung W. Hydride compositions. United States.
Lee, Myung W. Sun .
"Hydride compositions". United States. https://www.osti.gov/servlets/purl/870128.
@article{osti_870128,
title = {Hydride compositions},
author = {Lee, Myung W},
abstractNote = {A composition for use in storing hydrogen, and a method for making the composition. The composition comprises a mixture of two or more hydrides, each hydride having a different series of hydrogen sorption isotherms that contribute to the overall isotherms of the mixture. The hydrides are chosen so that the isotherms of the mixture have regions wherein the hydrogen equilibrium pressure increases with increasing hydrogen, preferably linearly. The isotherms of the mixture can be adjusted by selecting hydrides with different isotherms and by varying the amounts of the individual hydrides, or both. Preferably, the mixture is made up of hydrides that have isotherms with substantially flat plateaus and in nearly equimolar amounts. The composition is activated by degassing, exposing to hydrogen and then heating at a temperature below the softening temperature of any of the. constituents so that their chemical and structural integrity is preserved. When the composition is used to store hydrogen, its hydrogen content can be found simply by measuring P.sub.H.sbsb.2 and determining H/M from the isothermic function of the composition.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1995},
month = {Sun Jan 01 00:00:00 EST 1995}
}