Method for producing Heterogeneous Catalysts containing Metal Nanoparticles
AssigneeNanostellar, Inc.
InventorsJifei JIA, Jian WANG, Kyle L. FUJDALA
Life of this patent
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Abstract
A monomer is added to a solvent containing metal salt and porous support materials and the solvent is stirred for a period of time to distribute and fix the metal in the pores of the support materials. The solids that are dispersed in the solvent are then separated from the liquid, dried and calcined to form heterogeneous catalysts. The monomer that is added is of a type that can be polymerized in the solvent to form oligomers or polymers, or both. When forming heterogeneous catalysts containing platinum, acrylic acid is selected as the preferred monomer.
Claims16
A method for producing a supported catalyst, comprising:
- mixing a metal oxide support material with a metal salt in a solvent;
- adding a monomer to a solvent containing metal salt and the metal oxide support materials, the monomer being of a type that can be polymerized in the solvent to form oligomers or polymers, or both;
- stirring the solvent containing the metal salt, the support materials and the monomer;
- separating the liquid from the solid in the solvent;
- and
- calcining the separated solid to produce the supported catalyst.
A method for producing a supported catalyst, comprising:
- adding a fixing agent to a first solvent containing metal salt of a predetermined metal type and support materials, stirring the first solvent, and then separating out the support materials from the first solvent;
- mixing a portion of the support materials separated out from the first solvent and metal salt of the predetermined metal type into a second solvent;
- and
- adding a fixing agent to the second solvent, stirring the second solvent, and then separating out the support materials from the second solvent;
- and
- calcining the support materials separated out from the second solvent to produce the supported catalyst.
A method for producing a supported catalyst, comprising:
- adding a fixing agent to a first solvent containing metal salt of a first metal type and support materials, stirring the first solvent, and then separating out the support materials from the first solvent;
- mixing a portion of the support materials separated out from the first solvent and metal salt of a second metal type that is different from the first metal type into a second solvent;
- and
- adding a fixing agent to the second solvent, stirring the second solvent, and then separating out the support materials from the second solvent;
- and
- calcining the support materials separated out from the second solvent to produce the supported catalyst,
- wherein at least one of the first and second fixing agents comprise a monomer.
Dependencies are inferred from the claim text.