Process for making catalytically active Raney nickel electrodes

Details Process for making catalytically active Raney nickel electrodes Process for making catalytically active Raney nickel electrodes

1978-05-15

1979-09-25

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204128, 204290R, 204292, C25B 116, C25B 126, C25B 1102, C25B 1106

Patent

active

041690257

ABSTRACT:
A process for making an electrode having a Raney nickel surface layer of thickness greater than 75 microns and an average porosity of at least 11%, comprising interdiffusing aluminum and nickel on a conductive metal core at a temperature of at least 660.degree. C. to form a nickel-aluminum alloy layer on the core from which layer aluminum is selectively dissolved. When used as a cathode in an electrolytic cell for producing hydrogen, chlorine and caustic from brine, the electrode exhibits low hydrogen overvoltage.

REFERENCES:
patent: 3407231 (1968-10-01), Dickinson et al.
patent: 3846344 (1974-11-01), Larson et al.
patent: 4086149 (1978-04-01), Martinsons et al.

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