Copper-based water oxidation catalysts
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United States of America Patent
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Nov 19, 2013
Grant Date -
Apr 26, 2012
app pub date -
Oct 25, 2011
filing date -
Oct 25, 2010
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Abstract
Methods for electrolysis of water to oxygen gas are provided. The method utilizes dimeric copper cations in water at a basic pH. The cations are provided in the water by adding a complex in solid form with an appropriate anion, or through a “self-assembly” method whereby a copper salt and appropriate ligands are added to water adjusted to a basic pH. The cations decrease the overpotential of water electrolysis, thereby providing for efficient generations of oxygen gas using a catalyst formed from an abundant material (copper).
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