Oxygen gas diffusion cathode for sodium chloride electrolysis
View Patent ↗The present invention provides an oxygen gas diffusion cathode for sodium chloride electrolysis comprising: a porous conductive substrate comprising silver, a hydrophobic material and a carbon material; a catalyst comprising silver and palladium, coated on the porous conductive substrate.
1. An oxygen gas diffusion cathode for sodium chloride electrolysis comprising:
a porous conductive substrate comprising silver, a hydrophobic material and a carbon material; and
a catalyst comprising silver and palladium, coated on the porous conductive substrate,
wherein the catalyst has a molar ratio of silver to palladium of from 10/1 to 1/4.
2. The oxygen gas diffusion cathode according to claim 1 , wherein the carbon material is a carbon cloth or a carbon fiber sintered body.
3. The oxygen gas diffusion cathode according to claim 1 , wherein the catalyst has a molar ratio of silver to palladium of from 8/1 to 2/3.