Method of preparing a catalyst

Details Method of preparing a catalyst Method of preparing a catalyst

1974-12-03

1976-05-18

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252463, 252466B, 252466J, 252477R, 4232132, 4232135, B01J 2104, B01J 2364, B01J 2384

Patent

active

039576922

ABSTRACT:
A catalyst suitable, for example, for treatment of cat exhaust emissions is prepared by providing a substrate with a continuous adherent, surface layer of a carrier material for catalytic material by providing on the substrate a layer of carrier material, at least part of which comprises a gel, and firing; and sputtering catalytic material onto the surface layer by bombarding a source of the catalytic material in the neighbourhood of the surface layer with energetic ions, the conditions of atmosphere and selectivity of ions permitted to bombard the catalytic material being such that co-deposition upon the surface layer of unwanted material is avoided.

REFERENCES:
patent: 3437605 (1969-04-01), Keith
patent: 3773894 (1973-11-01), Bernstein et al.
patent: 3785998 (1974-01-01), Hoekstra
patent: 3839224 (1974-10-01), Yonehara et al.

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