Activated cathode and method for manufacturing the same

Chemistry: electrical and wave energy – Apparatus – Electrolytic

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204290F, 429 40, 429 44, 429 45, C25B 1100

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active

059549289

ABSTRACT:
In an activated cathode and a method for manufacturing the activated cathode, a first layer which contains nickel or cobalt as a main component is formed on a metal substrate, and a second layer which contains platinum or ruthenium as a main component is formed on the first layer. It is preferable that the first layer is formed of Raney nickel and the second layer has a large cathode working area, or it is also preferable that the first layer is formed of nickel oxide or cobalt oxide, and the second layer is formed of fine platinum or ruthenium particles and has a large cathode working area.

REFERENCES:
patent: 4377454 (1983-03-01), Bommaraju et al.
patent: 4487818 (1984-12-01), Ovshinsky et al.
patent: 4555317 (1985-11-01), Nicolas et al.
patent: 4587001 (1986-05-01), Cairns et al.
patent: 4871703 (1989-10-01), Beaver et al.
patent: 4900585 (1990-02-01), Leroux et al.
patent: 4970094 (1990-11-01), Byrd
Platinum Metals Review, vol. 29, pp. 98-106 1985 No month available.
Grove, D.E., "Precious-Metal Activated Cathodes for Chloralkali Cells", in Modern Chlor-Alkali Technology, vol. 3, Chapter 19, 1986 No month available.

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