PREPARING FE/NI-FREE ALKALI METAL HYDROXIDE ELECTROLYTES
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United States of America Patent
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Jul 8, 2021
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Mar 18, 2021
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Mar 18, 2021
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Abstract
A method for preparing an Fe/Ni-free alkali metal hydroxide solution may include electrodepositing Ni ions of an alkali metal hydroxide electrolyte on surfaces of an Au anode and an Au cathode by placing the Au anode and the Au cathode within the Fe-free alkali metal hydroxide electrolyte and applying a voltage in a range of 1.75 to 2.25 between the Au anode and the Au cathode for a period in a range of 8 to 12 hours.
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