Electrode for electrolytic production of chlorine
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United States of America Patent
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Apr 30, 2013
Grant Date -
Dec 22, 2011
app pub date -
Jun 17, 2011
filing date -
Jun 21, 2010
priority date (Note) -
Expired
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Abstract
The present invention relates to an electrode that includes an electrically conducting substrate based on a valve metal having a main proportion of titanium, tantalum or niobium, and an electrocatalytically active coating comprising up to 50 mol % of a noble metal oxide or noble metal oxide mixture and at least 50 mol % of titanium oxide. The coating includes a minimum proportion of oxides of anatase structure determined by a ratio of the signal height of the most intensive anatase reflection in an x-ray diffractogram (CuKα radiation) after subtraction of a linear background to the signal height of the most intensive rutile reflection in the same diffractogram, wherein the ratio is at least 0.6.
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