A non-carbon, metal-based high temperature resistant anode of a cell for
the production of aluminium has a metal-based substrate coated with one or
more electrically conductive adherent applied layers, at least one
electrically conductive layer being electrochemically active. The
electrochemically active layer contains one or more electrocatalysts
fostering the oxidation of oxygen ions as well as fostering the formation
of biatomic molecular gaseous oxygen to inhibit ionic and/or monoatomic
oxygen attack of the metal-based substrate. The electrocatalyst can be
iridium, palladium, platinum, rhodium, ruthenium, silicon, tin, zinc,
Mischmetal oxides and metals of the Lanthanide series. The applied layer
may further comprise electrochemically active constituents from oxides,
oxyfluorides, phosphides, carbides, in particular spinels such as
ferrites.