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US 4,394,293 AGranted
Catalyst for the photolytic production of hydrogen from water
AssigneeEngelhard Corporation
InventorsMichael Gratzel, John Kiwi
Life of this patent
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Abstract
A catalytic dispersion of fine metal particles mediates the photodissociation of water into hyrogen gas. A protective agent adsorptive to said particles and selected from among homopolymers, copolymers, hydrocarbyl radicals and polysaccharides stabilizes the said dispersion.
Claims12
A stabilized catalyst for promoting electron transfer to water protons for mediating evolution of hydrogen gas by photolysis comprising an active catalytic reducing amount of Noble metal particles in finely divided form and a water permeable protective agent adsorptive to said metal particles and being polyvinyl alcohol.
Dependencies are inferred from the claim text.