Abstract: A process and apparatus for continuously coating a solid electrolyte with a catalytically active metal, whereby large-area sheets of the solid electrolyte are continuously coated in a uniform manner with the catalytically active metals, by first being impregnated with an aqueous solution of the particular metal and subsequently being passed through, in a water bath, between two rolls acting as electrodes, wherein a felt of carbon is arranged on the cathode side interposed between the electrolyte and the cathode roll, and thus being subjected to an electrolysis process.

Abstract: An improved electrode for the electrolysis of water comprising a porous sinter plate of titanium or a titanium alloy having on one surface a coating of a finely divided catalyst comprising a mixture of ruthenium oxide and iridium oxide. In a preferred embodiment, the electrode has on its outer margin a dense, non-porous zone having a smooth appearance.