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US 8,557,727 B2Granted
Method of forming a catalyst with inhibited mobility of nano-active material
AssigneeSDCmaterials, Inc.
InventorsQinghua Yin, Xiwang Qi, Maximilian A. Biberger
Life of this patent
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Abstract
A method of forming a catalyst, comprising: providing a plurality of support particles and a plurality of mobility-inhibiting particles, wherein each support particle in the plurality of support particles is bonded with its own catalytic particle; and bonding the plurality of mobility-inhibiting particles to the plurality of support particles, wherein each support particle is separated from every other support particle in the plurality of support particles by at least one of the mobility-inhibiting particles, and wherein the mobility-inhibiting particles are configured to prevent the catalytic particles from moving from one support particle to another support particle.
Claims40
A method of forming a catalyst, comprising:
- providing a plurality of support particles and a plurality of mobility-inhibiting particles, wherein each support particle in the plurality of support particles is bonded with its own catalytic particle;
- and
- bonding the plurality of mobility-inhibiting particles to the plurality of support particles,
- wherein each support particle is separated from every other support particle in the plurality of support particles by at least one of the mobility-inhibiting particles,
- wherein the mobility-inhibiting particles are configured to prevent the catalytic particles from moving from one support particle to another support particle, and
- wherein providing the plurality of support particles comprises:
- nano-sizing a precursor support powder that has an average grain size equal to or greater than 1 micron;
- nano-sizing a precursor catalytic powder that has an average grain size equal to or greater than 1 micron;
- and
- bonding the nano-sized catalytic powder to the nano-sized support powder, thereby forming the plurality of support particles with each support particle in the plurality of support particles bonded with its own catalytic particle.
7 more elements
A method of forming a catalyst, comprising:
- providing a plurality of support particles and a plurality of mobility-inhibiting particles, wherein each support particle in the plurality of support particles is bonded with its own catalytic particle;
- dispersing the plurality of support particles in a dispersion liquid, thereby forming a dispersion of support particles;
- dispersing the plurality of mobility-inhibiting particles in a dispersion liquid, thereby fanning a dispersion of mobility-inhibiting particles;
- mixing the dispersion of support particles with the dispersion of mobility-inhibiting particles, thereby forming a wet mixture;
- freeze-drying the wet mixture, thereby forming a dried mixture;
- and
- calcining the dried mixture, thereby forming a cluster of the plurality of support particles and the plurality of mobility-inhibiting particles, wherein each support particle is separated from every other support particle in the plurality of support particles by at least one of the mobility-inhibiting particles, and wherein the mobility-inhibiting particles are configured to prevent the catalytic particles from moving from one support particle to another support particle.
4 more elements
A catalyst comprising:
- a plurality of support particles, wherein each support particle in the plurality of support particles is bonded with its own catalytic particle;
- and
- a plurality of mobility-inhibiting particles bonded to the plurality of support particles,
- wherein each support particle is separated from every other support particle in the plurality of support particles by at least one of the mobility-inhibiting particles,
- wherein the mobility-inhibiting particles are configured to prevent the catalytic particles from moving from one support particle to another support particle, and
- wherein the plurality of support particles comprises a plurality of alumina particles.
3 more elements
A catalyst comprising:
- a plurality of support particles, wherein each support particle in the plurality of support particles is bonded with its own catalytic particle;
- and
- a plurality of mobility-inhibiting particles bonded to the plurality of support particles,
- wherein each support particle is separated from every other support particle in the plurality of support particles by at least one of the mobility-inhibiting particles,
- wherein the mobility-inhibiting particles are configured to prevent the catalytic particles from moving from one support particle to another support particle, and
- wherein
- each support particle in the plurality of support particles has a diameter between 1 nanometer and 500 nanometers;
- each catalytic particle has a diameter between 0.5 nanometers and 5 nanometers;
- and
- each mobility-inhibiting particle in the plurality of mobility-inhibiting particles has a diameter between 1 nanometer and 500 nanometers.
7 more elements
Dependencies are inferred from the claim text.