TANTALUM-CONTAINING TIN OXIDE FOR FUEL CELL ELECTRODE MATERIAL
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United States of America Patent
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Aug 27, 2015
app pub date -
Mar 6, 2014
filing date -
Mar 6, 2013
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Abstract
A tantalum-containing tin oxide for a fuel cell electrode material, comprising tin oxide containing tantalum. The tantalum content is 0.001-30 mol %. When the tantalum-containing tin oxide is measured by x-ray diffraction, the value for [ITa205/ISnO2]DOPE is smaller than the value for [ITa205/ISnO2]MIX. In addition to the tin oxide particles containing tantalum, ideally a tantalum oxide is present on the surface of the particles. Also, ideally the tantalum oxide is crystalline.
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