Layered alkali iridate, layered iridic acid, and iridium oxide nanosheet
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United States of America Patent
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Jun 27, 2017
Grant Date -
Dec 29, 2016
app pub date -
Sep 9, 2016
filing date -
Mar 11, 2014
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Abstract
Provided is a layered alkali iridate and a layered iridic acid to be used for producing iridium oxide nanosheets, and an iridium oxide nanosheet. A layered alkali iridate with composition of MxIrOy.nH2O (where M is a monovalent metal, x is 0.1 to 0.5, y is 1.5 to 2.5, and n is 0.5 to 1.5), wherein MxIrOy.nH2O has a layered structure. The M is potassium, and the layered alkali iridate has diffraction peaks at 2θ diffraction angles of 13.0° and 26.0°. A layered iridic acid with a composition of HxIrOy.nH2O (where x is 0.1 to 0.5, y is 1.5 to 2.5, and n is 0 to 1), wherein HxIrOy.nH2O has a layered structure. This layered iridic acid has diffraction peaks at 2θ diffraction angles of 12.3° and 24.6°. A single crystalline iridium oxide nanosheet having a thickness of 3 nm or less.
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