Hydrogen storage composition and method
Abstract
A hydrogen storage composition based on a metal hydride dispersed in an aerogel prepared by a sol-gel process. The starting material for the aerogel is an organometallic compound, including the alkoxysilanes, organometals of the form M(OR)x and MOxRy, where R is an alkyl group of the form C.sub.n H.sub.2n+1, M is an oxide-forming metal, n, x, and y are integers, and y is two less than the valence of M. A sol is prepared by combining the starting material, alcohol, water, and an acid. The sol is conditioned to the proper viscosity and a hydride in the form of a fine powder is added. The mixture is polymerized and dried under supercritical conditions. The final product is a composition having a hydride uniformly dispersed throughout an inert, stable and highly porous matrix. It is capable of absorbing up to 30 moles of hydrogen per kilogram at room temperature and pressure, rapidly and reversibly. Hydrogen absorbed by the composition can be readily be recovered by heat or evacuation.
- Inventors:
-
- Aiken, SC
- Issue Date:
- Research Org.:
- Savannah River Site (SRS), Aiken, SC (United States)
- OSTI Identifier:
- 875088
- Patent Number(s):
- 6528441
- Assignee:
- Westinghouse Savannah River Company, L.L.C. (Aiken, SC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
- DOE Contract Number:
- AC09-89SR18035
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- hydrogen; storage; composition; method; based; metal; hydride; dispersed; aerogel; prepared; sol-gel; process; starting; material; organometallic; compound; including; alkoxysilanes; organometals; form; morx; moxry; alkyl; csubn; hsub2n1; oxide-forming; integers; valence; sol; combining; alcohol; water; acid; conditioned; proper; viscosity; fine; powder; added; mixture; polymerized; dried; supercritical; conditions; final; product; uniformly; throughout; inert; stable; highly; porous; matrix; capable; absorbing; 30; moles; kilogram; temperature; pressure; rapidly; reversibly; absorbed; readily; recovered; heat; evacuation; metal hydride; organometallic compound; sol-gel process; storage composition; /501/516/420/423/502/
Citation Formats
Heung, Leung K, and Wicks, George G. Hydrogen storage composition and method. United States: N. p., 2003.
Web.
Heung, Leung K, & Wicks, George G. Hydrogen storage composition and method. United States.
Heung, Leung K, and Wicks, George G. Wed .
"Hydrogen storage composition and method". United States. https://www.osti.gov/servlets/purl/875088.
@article{osti_875088,
title = {Hydrogen storage composition and method},
author = {Heung, Leung K and Wicks, George G},
abstractNote = {A hydrogen storage composition based on a metal hydride dispersed in an aerogel prepared by a sol-gel process. The starting material for the aerogel is an organometallic compound, including the alkoxysilanes, organometals of the form M(OR)x and MOxRy, where R is an alkyl group of the form C.sub.n H.sub.2n+1, M is an oxide-forming metal, n, x, and y are integers, and y is two less than the valence of M. A sol is prepared by combining the starting material, alcohol, water, and an acid. The sol is conditioned to the proper viscosity and a hydride in the form of a fine powder is added. The mixture is polymerized and dried under supercritical conditions. The final product is a composition having a hydride uniformly dispersed throughout an inert, stable and highly porous matrix. It is capable of absorbing up to 30 moles of hydrogen per kilogram at room temperature and pressure, rapidly and reversibly. Hydrogen absorbed by the composition can be readily be recovered by heat or evacuation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 2003},
month = {Wed Jan 01 00:00:00 EST 2003}
}