Process for producing carbon black having affixed nitrogen
AssigneeGas Research Institute
InventorsAnton C. Greenwald, Vinod Jalan, deceased
Life of this patent
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Abstract
A catalyst material of carbon black powder having nitrogen affixed to its surface and process for its production by contacting carbon black powder particles with a plasma or low energy beam of nitrogen containing ions affixing the nitrogen ions to the surface of the particles in a concentration of about 0.1 to about 10 percent, based upon the total number of surface atoms. The catalysts are particularly suited for use in phosphoric acid fuel cells.
Claims15
A process for production of catalyst material comprising contacting carbon black powder particles with nitrogen containing ions having an ion energy of about 0.01 to about 1,000 eV affixing said nitrogen to the surface and less than about 5 atom layers below said surface of said carbon black powder particles, the crystal and atomic structure of said carbon black powder unmodified by said nitrogen affixed to its surface.
Dependencies are inferred from the claim text.