Catalyst and method for making

Details Catalyst and method for making Catalyst and method for making

1977-11-23

1979-01-30

Garvin, Patrick

Chemistry: electrical current producing apparatus, product, and

Having earth feature

2524253, 252447, B01J 2118, B01J 2342

Patent

active

041373723

ABSTRACT:
The rate of platinum recrystallization of a platinum supported on carbon catalyst is reduced by depositing porous carbon on and around the supported platinum crystallites. The reduced rate of platinum recrystallization results in higher platinum surface areas over a period of time and therefore improves the performance of the catalyst. The porous carbon can be deposited by any suitable technique, a preferred method being to heat the supported platinum in the presence of carbon monoxide to decompose the carbon monoxide thereby depositing carbon on and around the platinum crystallites.

REFERENCES:
patent: 2358359 (1944-09-01), Stuart
patent: 3311505 (1967-03-01), Paget et al.
patent: 3881957 (1975-05-01), Hausler
patent: 4028274 (1977-06-01), Kunz

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