Finely particulated colloidal platinum compound and sol for prod

Details Finely particulated colloidal platinum compound and sol for prod Finely particulated colloidal platinum compound and sol for prod

1974-12-20

1977-08-23

Mack, John H.

Chemistry: electrical current producing apparatus, product, and

Having earth feature

429 42, 429 44, H01M 800, H01M 486, H01M 488

Patent

active

040441938

ABSTRACT:
This disclosure deals with novel very fine, particulated colloidal platinum of the 15-25 Angstrom size range of unusual catalytic activity and particularly adapted for adsorption or other deposition upon carbon for use as fuel cell catalytic electrodes and the like and produced from platinum colloids and sols including complex platinum sulfite compounds and sols derived therefrom.

REFERENCES:
patent: 2283198 (1942-05-01), Fink et al.
patent: 3291753 (1966-12-01), Thompson
patent: 3437431 (1969-04-01), Platz
patent: 3629145 (1971-12-01), Morikawa
patent: 3804779 (1974-04-01), Kent et al.
patent: 3857737 (1974-12-01), Kemp et al.
Foundations of College Chemistry, Murphy and Rousseau, pp. 648-649, 1969.

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