Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Making catalytic electrode – process only
Patent
1982-09-28
1985-02-19
Niebling, John F.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Making catalytic electrode, process only
204290R, 156 60, 1563082, 156333, C25B 1100
Patent
active
045006474
ABSTRACT:
The disclosure is directed to preparing three-layer laminated "matrix" electrodes suitable for use as oxygen (air) cathodes in chlor-alkali and other electrochemical cells, fuel cells and in other electrochemical applications.
The term "matrix" as used herein means that the active carbon particles are present within an unsintered network of carbon black-PTFE (fibrillated) material.
This three-layer laminated electrode includes a porous, coherent, hydrophobic polytetrafluoroethylene (PTFE)-containing backing (wet proofing) layer, with or without carbon black therein, in contact with the non-working surface of a "matrix" active layer containing catalyzed or uncatalyzed active carbon particles present within an unsintered network of fibrilliated carbon black-PTFE and an electroconductive current distributor laminated to the working surface of said active layer, and to a process for making said laminate.
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Collins Arthur S.
Diamond Shamrock Chemicals Company
Niebling John F.
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