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US 11,684,911 B2Granted
Method for manufacturing catalyst and catalyst
AssigneeSubaru Corporation
InventorRyo Nagai
Life of this patent
Estimating the term…
Abstract
A method for manufacturing a catalyst includes depositing a catalyst slurry containing at least a catalyst metal and water on a support, depositing particles of a water-absorbing polymer on a surface of the catalyst slurry, expanding the particles to a predetermined size with the water present in the catalyst slurry, and firing the support having the catalyst slurry and the particles deposited on the catalyst slurry.
Claims9
A method for manufacturing a catalyst, the method comprising:
- depositing a catalyst slurry comprising at least a catalyst metal and water on a support;
- depositing particles of a water-absorbing polymer on a surface of the catalyst slurry;
- expanding the particles with the water present in the catalyst slurry to press the catalyst slurry with the expanded particles such that recesses or projections are formed by the expanded particles on the surface of the catalyst slurry;
- and
- removing the expanded particles from the support having the catalyst slurry, thereby leaving the recesses or projections on the surface of the catalyst slurry.
2 more elements
A method for manufacturing a catalyst layer, the method comprising:
- depositing a first catalyst slurry layer on a first surface of a support and a second catalyst sully layer on a second surface of the support facing the first surface, the first and second catalyst slurry layers comprising at least a catalyst metal and water;
- depositing particles of a water-absorbing polymer on a first surfaces of the first catalyst slurry layer and a second surface of the second catalyst slurry layer between the first surface of the first catalyst slurry layer and the second surface of the second catalyst slurry layer;
- expanding the particles with the water present in the catalyst slurry to press the first and second catalyst slurry layers with the expanded particles such that recesses or projections are formed by the expanded particles on the first surface of the first catalyst slurry layer and the second surface of the second catalyst slurry layer;
- and
- removing the expanded particles from the first and second slurry layers, leaving the recesses or projections on the first surface of the first slurry layer and the second surface of the second slurry layer.
2 more elements
Dependencies are inferred from the claim text.