Cathode with intermediate layer and fluorine resin and...

Details Cathode with intermediate layer and fluorine resin and... Cathode with intermediate layer and fluorine resin and...

C - Chemistry, Metallurgy

25

B

117/53, 204/195.

C25B 11/06 (2006.01) C23C 4/04 (2006.01) C25B 11/04 (2006.01)

Patent

CA 1220445

P06-31691C/HO CATHODE WITH INTERMEDIATE LAYER AND FLUORINE RESIN AND ACTIVE SUBSTANCE TOP LAYER ABSTRACT OF THE DISCLOSURE A cathode for use in the electrolysis of acid solutions, comprising an electrically conductive substrate, a sprayed coating layer containing at least 10% by weight of W, WC or a mixture thereof on the substrate and an impregnating coating layer comprising a mixture of a cathode active substance and an acid- resistant fluorine-based resin on the external surface of the sprayed coating layer, and a process for the production of such a cathode. The cathode has very superior hydrogen overvoltage characteristics and durability, and is very suitable for use in the electrolysis of acid solutions.

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