Non-carbon anodes with active coatings

Details Non-carbon anodes with active coatings Non-carbon anodes with active coatings

C - Chemistry, Metallurgy

25

C

C25C 3/12 (2006.01)

Patent

CA 2558969

An anode for electrowinning aluminium comprises an electrically conductive substrate that is covered with an applied electrochemically active coating comprising a layer that contains predominantly cobalt oxide CoO. The CoO layer can be connected to the substrate through an oxygen barrier layer, in particular containing copper, nickel, tungsten, molybdenum, tantalum and/or niobium.

La présente invention concerne une anode d'extraction électrolytique d'aluminium comprenant un substrat électroconducteur qui est recouvert d'un revêtement à activité électrochimique comprenant une couche qui contient principalement de l'oxyde de cobalt CoO. Cette couche de CoO peut être reliée au substrat par une couche barrière contre l'oxygène contenant en particulier du cuivre, du nickel, du tungstène, du molybdène, du tantale et/ou du niobium.

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