Electrolytic cell with low hydrogen overvoltage cathode

Details Electrolytic cell with low hydrogen overvoltage cathode Electrolytic cell with low hydrogen overvoltage cathode

1984-08-20

1986-05-06

Kaplan, G. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204 47, 204290R, C25B 900, C25B 1108, C25D 352

Patent

active

045869987

ABSTRACT:
A method of producing a cathode which operates at low hydrogen over-voltage in the electrolysis of water or aqueous solutions by electrodepositing on a nickel or nickel alloy substrate a coating comprising at least an outer layer of at least one platinum group metal, the outer layer of the platinum group metal being deposited from a plating bath which contains a solution of at least one platinum group metal compound and at least one additive of the type which supresses maxima in polarographic waves associated with reactions carried out at a dropping mercury electrode, said additive being further selected from those which do not react with the platinum group metal in the plating bath.

REFERENCES:
patent: 3592750 (1971-07-01), Lee
patent: 4100049 (1978-07-01), Brannan
patent: 4273624 (1981-06-01), Laitinen et al.
patent: 4416742 (1983-11-01), Kinase et al.
K. Schumpelt, Trans. Electrochem. Soc., vol. 80, pp. 489-498, (1941).

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