Gas diffusion electrode with polymeric hydrogel coating

Details Gas diffusion electrode with polymeric hydrogel coating Gas diffusion electrode with polymeric hydrogel coating

C - Chemistry, Metallurgy

25

B

319/20, 319/91,

C25B 11/04 (2006.01) C25B 11/00 (2006.01) C25B 11/03 (2006.01) C25C 7/02 (2006.01) G01N 27/30 (2006.01) H01M 4/62 (2006.01) H01M 4/86 (2006.01)

Patent

CA 1283626

ABSTRACT This invention is concerned with catalytic gas-diffusion structures such as electrodes and barriers comprising, as an integral part of a portion thereof, a non-ionic aqueous gel such as a polyvinyl alcohol, rendering said electrode impervious to gas percolation, while retaining electrolyte contact with the structures; and with methods of using said electrodes or barriers in a variety of electrochemical systems including electrolysis cells, fuel cells, batteries and others, as well as in metal-recovery systems involving no electricity.

494673

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