Electro-catalysts for the oxidation of ammonia in alkaline media
AssigneeOhio University
InventorGerardine G. Botte
Life of this patent
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Abstract
An electro-catalyst for the oxidation of ammonia in alkaline media; the electrocatalyst being a noble metal co-deposited on a support with one or more other metals that are active to ammonia oxidation. In some embodiments, the support is platinum, gold, tantalum, or iridium. In some embodiments, the support has a layer of Raney metal deposited thereon prior to the deposition of the catalyst. Also provided are electrodes having the electro-catalyst deposited thereon, ammonia electrolytic cells, ammonia fuel cells, ammonia sensors, and a method for removing ammonia contaminants from a contaminated effluent.
Claims8
A method of producing hydrogen comprising
- contacting an anode and a cathode with an ammonia solution in the presence of an alkaline electrolyte having a hydroxide concentration of at least 0.1M wherein said solution has a stoichiometric excess of said alkaline electrolyte relative to ammonia in said ammonia solution;
- and
- applying a current between the anode and cathode effective to oxidize the ammonia to produce hydrogen.
Dependencies are inferred from the claim text.