METHOD FOR PRODUCING TEXTILE CONSTRUCTIONS FOR GAS DIFFUSION ELECTRODES

摘要

The invention relates to a method for producing textile constructions for gas diffusion electrodes, particularly for use in electrolysis cells, according to which the textile construction is produced by rolling a dry power mixture containing at least one catalyst or one catalyst mixture and one binder. In a first preferred embodiment of the method, a liquid organic compound, particularly an alcohol, a ketone, an ester or a mixture of liquid organic compounds of this type is applied to the roll surfaces of the roll pair before bringing it into contact with the powder mixture, whereupon the roll surfaces are dried. In a second preferred embodiment, optionally in addition to the treatment of the roll surfaces with the liquid organic compound, ground powder made of polytetrafluoroethylene is rolled into a textile construction before rolling the dry power mixture.