Compositions and methods for hydrogen storage and recovery

• US 7,175,826 B2
• Filed: 12/29/2003
• Issued: 02/13/2007
• Est. Priority Date: 12/29/2003
• Status: Expired due to Fees

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Minnear, William Paul, Lemmon, John Patrick, Brewer, Luke Nathaniel, Townsend, Susan Holt
• Primary Examiner(s): Langel; Wayne A.
• Assistant Examiner(s): WARTALOWICZ, PAUL A
• Application Number:
  US10/747,838
• Publication Number:
  US 20050148466A1
• Time in Patent Office: 1,142 Days
• Field of Search: None
• US Class Current: 423/645
• CPC Class Codes: C01B 3/001 characterised by the uptaking medium; Treatment thereof
• CPC Class Codes: C01B 3/0078 Composite solid storage mediums, i.e. coherent or loose mixtures of different solid constituents, chemically or structurally heterogeneous solid masses, coated solids or solids having a chemically modified surface region
• CPC Class Codes: C01B 6/21 Preparation of borohydrides of alkali metals, alkaline earth metals, magnesium or beryllium; Addition complexes thereof, e.g. LiBH4.2N2H4, NaB2H7
• CPC Class Codes: C01B 6/23 Preparation of borohydrides of other metals, e.g. aluminium borohydride; Addition complexes thereof, e.g. Li[Al(BH4)3H]
• CPC Class Codes: C01B 6/24 Hydrides containing at least two metals; Addition complexes thereof C01B6/13 - C01B6/23 take precedence
• CPC Class Codes: Y02E 60/32 Hydrogen storage

Abstract

Disclosed herein is a hydrogen storage composition comprising a catalyst composition disposed upon a storage composition; wherein the catalyst composition comprises an alloy of calcium, barium, platinum, palladium, nickel, titanium, chromium, manganese, iron, cobalt, copper, silicon, germanium, rhodium, rhodium, ruthenium, molybdenum, niobium, zirconium, yttrium, barium, lanthanum, hafnium, tungsten, rhenium, osmium, iridium, or a combination comprising at least one of the foregoing metals.

Claims

1. A hydrogen storage composition consisting essentially of a catalyst composition disposed upon a storage composition;

wherein the catalyst composition consists essentially of barium;

wherein the storage composition consists essentially of alanates.

2. The composition of claim 1, wherein the catalyst composition covers a surface area in a range of from about 1 percent to about 100 percent of the total surface area of the storage composition.

3. The composition of claim 1, wherein the catalyst composition is disposed onto the surface of the storage composition as isolated particulates.

4. The composition of claim 1, wherein the isolated particulates have a radius of gyration in a range of from about 1 nanometer to about 200 nanometers.