Metal nanoparticles as a conductive catalyst

DWPI Title: Metal nanocluster composite conductive catalytic material, as catalyst in e.g. electro-oxidation of hydrogen, comprises metal nanocluster on carbon substrate within porous zeolitic material, where the material has composition of e.g. metal
Abstract: A metal nanocluster composite material for use as a conductive catalyst. The metal nanocluster composite material has metal nanoclusters on a carbon substrate formed within a porous zeolitic material, forming stable metal nanoclusters with a size distribution between 0.6-10 nm and, more particularly, nanoclusters with a size distribution in a range as low as 0.6-0.9 nm.
Use: (I) is useful as a conductive catalyst in electro-oxidation of hydrogen and electro-reduction of oxygen in fuel cells.
Advantage: (I): is a stable and highly conductive material; avoids particle sintering and maintains high electronic conductivity, hence reduces the demand for high loading of platinum or other metals; and has no or only trace amounts of sodium.
Novelty: Metal nanocluster composite conductive catalytic material (I), comprises metal nanoclusters on a carbon substrate within a porous zeolitic material, where the metal nanoclusters have a size distribution of 0.6-10 nm, and (I) has a composition of 1-30 wt.% of metal, 3-25 wt.% of carbon, 22-45 wt.% of silicon dioxide (SiO 2 ), 2-22 wt% of alumina (Al 2 O 3 ), 0-13 wt.% of sodium peroxide (Na 2 O), and water (balance).
Filed: 2/25/2004
Application Number: US2004788017A
Tech ID: SD 7682.0
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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