US 12,331,414 B2
Methods and apparatus for performing electrolytic conversion
Zishuai Zhang, Vancouver (CA); and Curtis P. Berlinguette, Vancouver (CA)
Assigned to THE UNIVERSITY OF BRITISH COLUMBIA, Vancouver (CA)
Appl. No. 18/262,351
Filed by THE UNIVERSITY OF BRITISH COLUMBIA, Vancouver (CA)
PCT Filed Jan. 21, 2022, PCT No. PCT/CA2022/050094
§ 371(c)(1), (2) Date Jul. 20, 2023,
PCT Pub. No. WO2022/155754, PCT Pub. Date Jul. 28, 2022.
Claims priority of provisional application 63/140,176, filed on Jan. 21, 2021.
Prior Publication US 2024/0076785 A1, Mar. 7, 2024
Int. Cl. C25B 1/02 (2006.01); C25B 1/23 (2021.01); C25B 3/03 (2021.01); C25B 3/07 (2021.01); C25B 3/23 (2021.01); C25B 3/25 (2021.01); C25B 3/26 (2021.01); C25B 9/23 (2021.01); C25B 11/032 (2021.01); C25B 11/065 (2021.01); C25B 11/081 (2021.01); C25B 15/08 (2006.01)
CPC C25B 9/23 (2021.01) [C25B 1/02 (2013.01); C25B 3/07 (2021.01); C25B 3/26 (2021.01); C25B 11/032 (2021.01); C25B 11/065 (2021.01); C25B 11/081 (2021.01); C25B 15/083 (2021.01)] 16 Claims
OG exemplary drawing
 
1. A method for performing a carbon dioxide reduction reaction in an electrolyzer, the method comprising:
applying an electrical potential between an anode and a cathode;
introducing hydrogen gas at the anode;
supplying an aqueous solution comprising bicarbonate ions at the cathode, wherein the aqueous solution is substantially free of gaseous carbon dioxide;
oxidizing, at the anode, the hydrogen gas to form hydrogen ions;
transporting the hydrogen ions from the anode through an ion exchange membrane toward the cathode; and
reacting the hydrogen ions with the bicarbonate ions at the cathode to yield one or more products.