Composite oxide powder for solid oxide fuel cell and its production method
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United States of America Patent
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Aug 9, 2016
Grant Date -
Feb 26, 2015
app pub date -
Jul 22, 2014
filing date -
Aug 23, 2013
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Abstract
To provide a composite oxide powder for a solid oxide fuel cell containing lanthanum, strontium and/or calcium, manganese and oxygen and having a highly uniform composition, and its production method. A composite oxide powder containing lanthanum, strontium and/or calcium, manganese and oxygen, wherein the coefficient of variation (α) of lanthanum is at most 6.0% and the coefficient of variation (β) of manganese is at most 13.0%, as calculated from the peak area ratio of the Lα ray of lanthanum and the Kα ray of manganese measured by an energy dispersive X-ray spectrometer attached to a scanning electron microscope.
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