Abstract: An electrode for gas evolution in electrolytic processes comprising a nickel-based metal substrate and a coating formed on said substrate, wherein the coating has pre-formed particles of a catalyst material exhibiting a perovskite-type structure dispersed within a nickel-based metal or metal oxide binder; and a method for the production of such an electrode.

Abstract: An electrode for gas evolution in electrolytic processes having a metal substrate and a coating formed on the substrate, the coating having at least a catalytic porous outer layer containing regions of porous nickel oxide dispersed within a solid nickel oxide binder, and a method for the production of the electrode from preformed nickel vanadium oxide particles.

Abstract: An electrode for gas evolution in electrolytic processes and a method for the production of such an electrode, the electrode having a metal substrate and a coating formed on the substrate, wherein the coating has at least a highly porous catalytic outer layer containing nickel oxide and nickel hydroxide, the porous outer layer having a surface area of at least 40 m2/g (BET). The catalytic layer is prepared from a Ni oxide/V oxide initial coating with subsequent leaching of V.