Cathode and cell for lowering hydrogen overvoltage in a chlor-ak

Details Cathode and cell for lowering hydrogen overvoltage in a chlor-ak Cathode and cell for lowering hydrogen overvoltage in a chlor-ak

1980-03-07

1981-11-03

Andrews, R. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204290R, 204292, C25B 1104

Patent

active

042984475

ABSTRACT:
The invention comprises an improved cathode for a chloralkali cell having grains of alpha-iron adherent to the surface of the cathode, and a process for making the cathode which comprises depositing grains of alpha-iron onto the surface of an electrically conductive cathode substrate in an electrical cell. The invention also provides a method for lowering the operating voltage of a chloralkali electrolysis cell which comprises adding iron particles to the cathode compartment of the cell.

REFERENCES:
patent: 2642654 (1953-06-01), Ahrens
patent: 3406105 (1968-10-01), Letendre
patent: 3637437 (1972-01-01), Goldberger
patent: 4105516 (1978-08-01), Martinsons et al.
patent: 4116804 (1978-09-01), Needes
patent: 4169025 (1979-09-01), Needes

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