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US 7,842,276 B1Granted
Catalysts for the evolution of hydrogen from borohydride solution
AssigneeUniversity of Central Florida Research Foundation, Inc.
InventorsClovis Alan Linkous, Darlene Kay Slattery, Danielle Delong Nangle
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Abstract
Organic pigments are capable of catalyzing the decomposition reaction of hydrogen-rich, stabilized, borohydride solutions to generate hydrogen gas on-board an operable hydrogen-consuming device such as a motor vehicle or other combustion engine. The organic pigments are used in hydrogen generating systems and in methods for controlling the generation of hydrogen gas from metal hydride solutions.
Claims6
A hydrogen gas generation device consisting of, in combination:
- a container for an alkaline solution having an inlet for borohydride tablets that dissolve to form a borohydride solution;
- an immobilized organic pigment catalyst selected from the group consisting of pyranthrenedione, indanthrene gold orange, ditridecyl-3,4,9,10-perylenetetracarboxylic diimide, indanthrene black, dimethoxy violanthrone, 1,4-diketopyrrolo-3,4C pyrrole, quinacridone, indanthrene yellow, 3,4,9,10-perylenetetracarboxylic dianhydride, isoviolanthrone, and perylenetetracarboxylic diimide, in the form of a solid, loose powder immobilized on a substrate selected from the group consisting of ceramics, cements, glass, zeolites, perovskites, fibers, fibrous material, mesh, polymeric resin and plastic, fastened on the end of an armature which is manipulated so that the immersion depth of the catalyst into the borohydride solution is varied to expand the total area that is performing the hydrogen gas evolving borohydride decomposition reaction represented by the equation, BH4−+2H2O→BO2−+4H2;
- and
- an outlet for hydrogen gas produced from the organic pigment catalyzed reaction.
1 more element
Dependencies are inferred from the claim text.