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Title: Enhancing electrochemical methods for producing and regenerating alane by using electrochemical catalytic additive

A process of using an electrochemical cell to generate aluminum hydride (AlH.sub.3) and other high capacity hydrides is provided. The electrolytic cell uses an electro-catalytic-additive within a polar non-salt containing solvent to solubilize an ionic hydride such as NaAlH.sub.4 or LiAlH.sub.4. The resulting electrochemical process results in the formation of AlH.sub.3 adduct. AlH.sub.3 is obtained from the adduct by heating under vacuum. The AlH.sub.3 can be recovered and used as a source of hydrogen for the automotive industry. The resulting spent aluminum can be regenerated into NaAlH.sub.4 or LiAlH.sub.4 as part of a closed loop process of AlH.sub.3 generation.
Inventors:
Issue Date:
OSTI Identifier:
1414916
Assignee:
SAVANNAH RIVER NUCLEAR SOLUTIONS, LLC (Aiken, SC) SRS
Patent Number(s):
9,850,585
Application Number:
13/136,864
Contract Number:
AC09-08SR22470
Resource Relation:
Patent File Date: 2011 Aug 12
Research Org:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Works referenced in this record:

Preparation and crystal structures of aluminium hydride adducts with tetrahydrofuran [AlH3·OC4H8]2 and AlH3·2OC4H8
journal, January 1993
  • Gorrell, Ian B.; Hitchcock, Peter B.; Smith, J. David
  • Journal of the Chemical Society, Chemical Communications, Vol. 0, Issue 2, p. 189-190
  • DOI: 10.1039/C39930000189

Ti-doped alkali metal aluminium hydrides as potential novel reversible hydrogen storage materials
journal, May 1997

Metal-doped sodium aluminium hydrides as potential new hydrogen storage materials
journal, April 2000
  • Bogdanović, Borislav; Brand, Richard A.; Marjanović, Ankica
  • Journal of Alloys and Compounds, Vol. 302, Issue 1-2, p. 36-58
  • DOI: 10.1016/S0925-8388(99)00663-5

Advanced titanium doping of sodium aluminum hydride:: segue to a practical hydrogen storage material?
journal, May 1999
  • Jensen, Craig M.; Zidan, Ragaiy; Mariels, Nathan
  • International Journal of Hydrogen Energy, Vol. 24, Issue 5, p. 461-465
  • DOI: 10.1016/S0360-3199(98)00092-5

Hydrogen electrode reaction of lithium and sodium aluminum hydrides
journal, June 2008
  • Senoh, Hiroshi; Kiyobayashi, Tetsu; Kuriyama, Nobuhiro
  • International Journal of Hydrogen Energy, Vol. 33, Issue 12, p. 3178-3181
  • DOI: 10.1016/j.ijhydene.2008.01.019

Hydrogen cycling behavior of zirconium and titanium–zirconium-doped sodium aluminum hydride
journal, June 1999
  • Zidan, Ragaiy A.; Takara, Satoshi; Hee, Allan G.
  • Journal of Alloys and Compounds, Vol. 285, Issue 1-2, p. 119-122
  • DOI: 10.1016/S0925-8388(99)00006-7