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US 12,404,592 B2Granted
Heteroatom-doped carbon catalyst for electrocatalytic halogen production
AssigneeOhio State Innovation Foundation
InventorsUmit Ozkan, Kuldeep Mamtani, Deeksha Jain
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Abstract
Disclosed herein are methods of electrochemically producing halogen using an oxygen consuming gas diffusion electrode, referred to herein as an oxygen depolarized cathode (ODC). The electrode can include heteroatom-doped carbon nanostructures as catalysts for both halogen evolving anodes and oxygen depolarized cathodes. Examples of halogens that can be produced include chlorine and bromine by oxidation of the respective halide ions.
Claims17
A method for electrochemically producing a halogen, comprising:
- contacting a halide ion in acidic or alkaline electrolyte media with a heteroatom-doped carbon catalyst in an electrochemical cell, wherein the halide ion is present in the acidic or alkaline electrolyte media at a concentration of from 10 mM to less than 500 mM, and applying a current or potential to the electrochemical cell to produce the halogen,
- wherein the heteroatom-doped carbon catalyst comprises a heteroatom selected from nitrogen, phosphorous, boron, sulfur, chlorine, a transition metal, or a combination thereof;
- and
- wherein the heteroatom-doped carbon catalyst is present as a nanostructure selected from the group consisting of a herringbone structure, a stacked platelet, a stacked cup, a graphene sheet, or a combination thereof.
1 more element
Dependencies are inferred from the claim text.