Electrode catalyst and method for production thereof
AssigneePermelec Electrode Ltd.
InventorsYoshinori Nishiki, Shuji Nakamatsu, Takayuki Shimamune
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Abstract
An electrode catalyst comprising a lead dioxide electrically deposited layer, the layer having particles containing .beta.-lead dioxide powder dispersed therein, and a method for producing the electrode catalyst are disclosed. The particles contain .beta.-lead dioxide powder and optionally an electrolytic cocatalyst selected from PTFE, agar, gelatin, a perfluoro ion exchange resin and the like. The present electrode catalyst is useful for production of ozone by electrolysis of water and for production of peroxides by electrolysis of aqueous solutions.
Claims16
An electrode catalyst comprising a lead dioxide electrically deposited layer, said layer having particles containing .beta.-lead dioxide powder dispersed therein.
An electrode catalyst comprising a substrate for electrodeposition and a lead dioxide electrically deposited layer on the substrate, said layer having particles containing .beta.-lead dioxide powder dispersed therein.
A method for producing a lead dioxide electrode catalyst, which comprises electrolyzing a substrate for deposition in an aqueous lead nitrate solution having particles containing .beta.-lead dioxide powder suspended therein to form a lead dioxide electrically deposited layer on said substrate, said layer having particles containing .beta.-lead dioxide powder dispersed therein;
- and thereafter separating the lead dioxide electrically deposited layer from the substrate.
A method for producing a lead dioxide electrode catalyst, which comprises electrolyzing a substrate for electrodeposition in an aqueous lead nitrate solution having particles containing .beta.-lead dioxide powder suspended therein to thereby form a lead dioxide electrically deposited layer on said substrate, said layer having particles containing .beta.-lead dioxide powder dispersed therein.
Dependencies are inferred from the claim text.