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US 9,666,877 B2Granted
Metal-oxide catalysts for fuel cells
AssigneeStc.Unm
InventorsAlexey Serov, Ulises A Martinez, Plamen B Atanassov
Life of this patent
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Abstract
A method of preparing catalytic materials comprising depositing platinum or non-platinum group metals, or alloys thereof on a porous oxide support.
Claims15
A method for forming a catalytic material comprising:
- mixing an oxide precursor with sacrificial template particles to produce dispersed oxide-precursor composite particles;
- calcining the dispersed oxide-precursor to convert the oxide-precursor to oxide, producing an oxide composite material having an irregular external surface morphology;
- selectively removing the sacrificial template particles without dissolution of the oxide so as to produce a porous oxide support;
- and
- attaching or depositing a platinum group metal, non-platinum group metal, or alloy thereof to the surface of the porous oxide support.
2 more elements
A method for forming a catalytic material comprising:
- mixing an oxide precursor with a plurality of sacrificial template particles to produce dispersed oxide-precursor composite particles;
- calcining the dispersed oxide-precursor to convert the oxide-precursor to oxide, producing an oxide composite material wherein multiple sacrificial particles are encompassed within the same oxide composite material;
- selectively removing the sacrificial template particles without dissolution of the oxide so as to produce a porous oxide support;
- and
- attaching or depositing a platinum group metal, non-platinum group metal, or alloy thereof to the surface of the porous oxide support.
2 more elements
Dependencies are inferred from the claim text.