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:
- nano-sizing a precursor support powder;
- nano-sizing a precursor catalytic powder;
- and
- bonding the nano-sized catalytic powder to the nano-sized support powder to form combined support/catalytic particles;
- and
- bonding a plurality of mobility-inhibiting particles to the combined support/catalytic particles,
- wherein the mobility-inhibiting particles are configured to inhibit movement of the catalytic particles on the support particles.
A method of forming a catalyst, comprising:
- nano-sizing a precursor support powder;
- nano-sizing a precursor catalytic powder;
- and
- bonding the nano-sized catalytic powder to the nano-sized support powder to form combined support/catalytic particles;
- dispersing the support/catalytic particles in a dispersion liquid, thereby forming a dispersion of support/catalytic particles;
- dispersing a plurality of mobility-inhibiting particles in a dispersion liquid, thereby forming a dispersion of mobility-inhibiting particles;
- mixing the dispersion of support/catalytic 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 support/catalytic particles and the plurality of mobility-inhibiting particles, wherein the mobility-inhibiting particles are configured to inhibit movement of the catalytic particles on the support particles.
A catalyst comprising:
- a plurality of support particles comprising alumina and having a diameter between 1 nanometer and 500 nanometers, the plurality of support particles are bonded to a plurality catalytic particles to form support/catalytic particles;
- and
- a plurality of mobility-inhibiting particles having a diameter between 1 nanometer and 500 nanometers bonded to the plurality of support/catalytic particles,
- wherein the mobility-inhibiting particles are configured to inhibit the catalytic particles from moving on the support particles.
Dependencies are inferred from the claim text.