METHOD OF ELECTROCHEMICALLY DEPOSITING HIGH-ACTIVITY ELECTROCATALYSTS
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United States of America Patent
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Aug 14, 2014
app pub date -
Feb 6, 2014
filing date -
Feb 14, 2013
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Abstract
The method begins by forming a solution comprising catalyst precursors, electrolyte and a solvent. Electrodes are inserted into the solution comprising an anode electrode and a cathode electrode. Electrochemical deposition then occurs wherein a current is passed between the electrodes. In this method at least one additional step of: i) heating the solution prior to and during the electrochemical deposition; ii) increasing the concentration of the catalyst precursors in the solution to greater than 0.1 millimolar; iii) performing the electrochemical deposition by a pulsed current; and iv) adding chemical promoters to the solution.
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