Non-carbon anodes with active coatings
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United States of America Patent
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Oct 12, 2010
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app pub date -
Mar 18, 2005
filing date -
Mar 18, 2004
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Abstract
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.
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