Catalytic structure

Details Catalytic structure Catalytic structure

1976-12-30

1979-05-15

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252466J, 252472, 252473, 252477Q, 416241R, 416241A, B01J 2104, B01J 2342, B01J 2360, B01J 2374

Patent

active

041547055

ABSTRACT:
Foil, wire and similar coherent bodies of catalytic metal are provided with catalytically active surfaces by diffusing a chemically removable metal such as aluminum or zinc into those surfaces and then selectively dissolving out at least about a third of the removable metal. Platinum wire screens activated in this way make effective exhaust catalysts for automotive engines.

REFERENCES:
patent: 3428490 (1969-02-01), Bravo et al.
patent: 3627790 (1971-12-01), Stiles
patent: 3657157 (1972-04-01), Pieters et al.

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