ALUMINUM HYDRIDE, A1H3, AS A HYDROGEN STORAGE COMPOUND.
Description/Abstract
Aluminum hydride is a covalent, binary hydride that has been known for more than 60 years and is an attractive medium for on-board automotive hydrogen storage, since it contains 10.1% by wt. hydrogen with a density of 1.48 g/ml. There are at least 7 non-solvated AlH{sub 3} phases, namely {alpha}, {alpha}{prime}, {beta}, {gamma}, {var_epsilon} and {zeta}. The properties of {alpha}-AlH{sub 3}, obtained from the Dow Chemical Co. in 1980, have been previously reported. Here we present a description of the thermodynamic and kinetic properties of freshly prepared {alpha}, {beta} and {gamma} phases of AlH{sub 3}. In all cases the decomposition kinetics are appreciable below 100 C and all will meet the DOE 2010 gravimetric and volumetric vehicular system targets (6 wt% H{sub 2} and 0.045 kg/L). However, further research will be required to develop an efficient and economical process to regenerate AlH{sub 3} from the spent Al powder.
| DOI | 10.2172/899889 |
|---|---|
| Creator/Author: | GRAETZ, J. ; REILLY, J. ; SANDROCK, G. ; JOHNSON, J. ; ZHOU, W.M. ; WEGRZYN, J. |
| Publication Date: | 2006 Nov 27 |
| OSTI Identifier: | OSTI ID: 899889 |
| Report Number(s): | BNL--77336-2006 |
| DOE Contract Number: | DE-AC02-98CH10886 |
| DOI: | 10.2172/899889 |
| Other Number(s): | R&D Project: 05465; Other: EB4202000; TRN: US200709%%505 |
| Resource Type: | Technical Report |
| Resource Relation: | Related Information: ADVANCED MATERIALS FOR ENERGY CONVERSION III; SAN ANTONIO, TEXAS; 20060312 through 20060316 |
| Research Org: | BROOKHAVEN NATIONAL LABORATORY |
| Sponsoring Org: | Doe - Office Of Science |
| Subject: | 08 HYDROGEN; ALUMINIUM; HYDRIDES; HYDROGEN; HYDROGEN STORAGE; KINETICS; TARGETS; THERMODYNAMICS |
| Country of Publication: | United States |
| Language: | English |
| Format: | Size: 7 |
| Update Date: | 2009 Jun 08 |
Full Text
? K
View Full Text
or Access Individual Pages
search, view and/or download individual pages
Cite
Select a citation type to copy/paste or download the reference.
