Method of fabricating a fuel cell electrode

Details Method of fabricating a fuel cell electrode Method of fabricating a fuel cell electrode

1976-06-15

1977-08-23

Mack, John H.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

429 42, H01M 404

Patent

active

040439330

ABSTRACT:
A method of fabricating a fuel cell electrode comprising an electrocatalyst and binder wherein the colloidal chemistry of the aqueous catalyst and the binder suspension are controlled during the deposition of the catalyst/binder onto an electrode substrate. Control is by addition of acids, bases, or salts to an aqueous suspension of binder and catalyst to adjust the pH to within certain ranges to form a flocculate. The flocculate is then fabricated into an electrode. The catalyst/binder distribution within the electrode and electrochemical performance, including decay characteristics, of the electrode are improved.

REFERENCES:
patent: 3432362 (1969-03-01), Kroll
patent: 3444004 (1969-05-01), Smith
patent: 3676222 (1972-07-01), Deibert

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