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Title: ALUMINUM HYDRIDE, A1H3, AS A HYDROGEN STORAGE COMPOUND.

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.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
899889
Report Number(s):
BNL-77336-2006
R&D Project: 05465; EB4202000; TRN: US200709%%505
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Technical Report
Resource Relation:
Related Information: ADVANCED MATERIALS FOR ENERGY CONVERSION III; SAN ANTONIO, TEXAS; 20060312 through 20060316
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; ALUMINIUM; HYDRIDES; HYDROGEN; HYDROGEN STORAGE; KINETICS; TARGETS; THERMODYNAMICS

Citation Formats

GRAETZ, J, REILLY, J, SANDROCK, G, JOHNSON, J, ZHOU, W M, and WEGRZYN, J. ALUMINUM HYDRIDE, A1H3, AS A HYDROGEN STORAGE COMPOUND.. United States: N. p., 2006. Web. doi:10.2172/899889.
GRAETZ, J, REILLY, J, SANDROCK, G, JOHNSON, J, ZHOU, W M, & WEGRZYN, J. ALUMINUM HYDRIDE, A1H3, AS A HYDROGEN STORAGE COMPOUND.. United States. https://doi.org/10.2172/899889
GRAETZ, J, REILLY, J, SANDROCK, G, JOHNSON, J, ZHOU, W M, and WEGRZYN, J. 2006. "ALUMINUM HYDRIDE, A1H3, AS A HYDROGEN STORAGE COMPOUND.". United States. https://doi.org/10.2172/899889. https://www.osti.gov/servlets/purl/899889.
@article{osti_899889,
title = {ALUMINUM HYDRIDE, A1H3, AS A HYDROGEN STORAGE COMPOUND.},
author = {GRAETZ, J and REILLY, J and SANDROCK, G and JOHNSON, J and ZHOU, W M and WEGRZYN, J},
abstractNote = {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},
url = {https://www.osti.gov/biblio/899889}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Nov 27 00:00:00 EST 2006},
month = {Mon Nov 27 00:00:00 EST 2006}
}