Methods of Making Carbide And Oxycarbide Containing Catalysts
AssigneeHyperion Catalysis International, Inc.
InventorsJun Ma, David Moy
Life of this patent
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Abstract
Methods for forming compositions including carbide-containing nanorods and/or oxycarbide-containing nanorods and/or carbon nanotubes bearing carbides and oxycarbides. Rigid porous structures including oxycarbide-containing nanorods and/or carbide containing nanorods and/or carbon nanotubes bearing modified carbides and oxycarbides and methods of making the same are also provided. The compositions and rigid porous structures of the invention can be used either as catalyst and/or catalyst supports in fluid phase catalytic chemical reactions. Processes for making supported catalyst for selected fluid phase catalytic reactions are also provided.
Claims18
A method for forming a catalyst composition comprising the step of reacting carbon nanotubes with a solid Q-containing compound at temperatures between 500° C. to 1000° C. to form a carbide composition QC or Q2C that substantially retains the original morphology of said carbon nanotubes, said solid Q-containing compound comprising a carbide forming element Q.
A method for forming a catalyst composition comprising the steps of:
- mixing carbon nanotubes with a solid Q containing compound comprising a carbide forming element Q,
- said carbon nanotubes having a substantially uniform diameter between 1 nm and 100 nm and a length to diameter ratio greater than 5,
- said carbide forming element Q selected from the group consisting of transition metal, rare earth metal or actinide;
- calcining said mixture at a first temperature to melt said solid compound and disperse said carbide forming element Q onto said carbon nanotubes;
- and
- calcining said mixture at a second temperature higher than said first temperature to form a carbide composition QC or Q2C that substantially retains the original morphology of said carbon nanotubes.
Dependencies are inferred from the claim text.