US 12,435,430 B2
Electrode material, membrane electrode assembly, CO2 electrolysis device, and method for producing CO2 electrolysis product
Hiroyuki Kaneko, Tokyo (JP)
Assigned to IDEMITSU KOSAN CO., LTD., Chiyoda-ku (JP)
Appl. No. 18/550,400
Filed by IDEMITSU KOSAN CO., LTD., Chiyoda-ku (JP)
PCT Filed Mar. 8, 2022, PCT No. PCT/JP2022/010130
§ 371(c)(1), (2) Date Sep. 13, 2023,
PCT Pub. No. WO2022/196461, PCT Pub. Date Sep. 22, 2022.
Claims priority of application No. 2021-046538 (JP), filed on Mar. 19, 2021.
Prior Publication US 2024/0158929 A1, May 16, 2024
Int. Cl. C25B 3/26 (2021.01); C25B 9/23 (2021.01); C25B 11/054 (2021.01); C25B 13/08 (2006.01)
CPC C25B 3/26 (2021.01) [C25B 9/23 (2021.01); C25B 11/054 (2021.01); C25B 13/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrode material, comprising:
a plurality of carrying bodies formed such that each of the carrying bodies comprises a conductive carrier and a plurality of catalyst particles supported by the conductive carrier; and
an anion exchange resin comprising an ionomer and formed on the plurality of carrying bodies such that 70% or more of a surface of each of the carrying bodies is covered by a layer of the anion exchange resin and that the ionomer comprises at least one group selected from the group consisting of a primary amino group, a secondary amino group, a tertiary amino group, and a quaternary ammonium group,
wherein the plurality of catalyst particles includes at least one of a metal complex, a metal, and an inorganic compound, and the ionomer of the ion exchange resin has a basic site density in a range of 2.0 mmol/cm3 to 5.0 mmol/cm3.