Gas diffusion electrode with a hydrophilic covering layer, and p

Details Gas diffusion electrode with a hydrophilic covering layer, and p Gas diffusion electrode with a hydrophilic covering layer, and p

1984-09-06

1986-01-07

Niebling, John F.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

264126, 264127, C25B 1100

Patent

active

045632618

ABSTRACT:
A gas diffusion electrode for the reduction of oxygen, which contains a hydrophobic electro-catalyst layer, is described. One side of this layer is covered with a hydrophilic layer which is composed of at least one transition metal or an oxide or mixed oxide of transition metals and can also contain a current collector in the form of a mesh. For producing the gas diffusion electrode, a hydrophobic electro-catalyst layer can first be prepared from a pulverulent mixture which contains the electro-catalyst and a hydrophobic polymer, and at least one transition metal or an oxide or mixed oxide of transition metals can be applied in a finely divided form to one side of this layer and bonded to the hydrophobic electro-catalyst layer by the application of pressure.

REFERENCES:
patent: 4278525 (1981-07-01), Gestaut
patent: 4377496 (1983-03-01), Solomon

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