Cathode for use in electrolytic cell
First Claim
1. A cathode for use in an electrolytic cell which comprises a metallic substrate and a coating thereon having at least an outer layer of a mixture of at least one platinum group metal and at least one platinum group metal oxide, characterised in that the platinum group metal in the mixture thereof with the platinum group metal oxide comprises from 2% to 30% by weight of the mixture.
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Accused Products
Abstract
A cathode for use in an electrolytic cell which comprises a metallic substrate, preferably of nickel alloy, and a coating thereon of a mixture of at least one platinum group metal and at least one platinum group metal oxide, the coating comprising from 2% to 30% by weight of platinum group metal. In the electrolysis of water or an aqueous solution e.g. an alkali metal chloride solution, the cathode has a low hydrogen over-voltage.
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Citations
7 Claims
- 1. A cathode for use in an electrolytic cell which comprises a metallic substrate and a coating thereon having at least an outer layer of a mixture of at least one platinum group metal and at least one platinum group metal oxide, characterised in that the platinum group metal in the mixture thereof with the platinum group metal oxide comprises from 2% to 30% by weight of the mixture.
Specification