Method for producing highly dispersed catalytic platinum

Details Method for producing highly dispersed catalytic platinum Method for producing highly dispersed catalytic platinum

1977-12-12

1979-01-23

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252472, B01J 2118, B01J 2342

Patent

active

041360591

ABSTRACT:
Method for the production of highly dispersed electrochemically active platinum particles having an average diameter below about 50 A for use in electrodes for fuel cells. Platinum particles are formed by mixing chloroplatinic acid and sodium dithionite in water to provide a platinum containing colloidal dispersion which may be absorbed on a support material. Hydrogen peroxide can be mixed with the chloroplatinic acid and sodium dithionite to improve the stability of the platinum containing colloidal dispersion.

REFERENCES:
patent: 3956469 (1976-05-01), El-Ghatta et al.
patent: 4031292 (1977-06-01), Hervert et al.

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