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Dense Carbide/Metal Composite Membranes for Hydrogen Separations Without Platinum Group Metals



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Mo2C-coated vanadium composites are presented as an example of a new class of metallic membranes for hydrogen separations. Unlike conventional platinum- group catalysts, Mo2C does not alloy with the bulk metal at temperatures >350 °C, allowing for operation without risk of embrittlement or loss of catalyst activity. Optimal permeabilities approach that of palladium, at a far lower cost.

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