Co2 electrolysis device, and method for manufacturing co2 electrolysis product

Abstract

Provided are a technique related to a CO 2 electrolysis device that is more excellent in production efficiency for producing a reduction product (CO or the like) from CO 2 , and a technique related to a CO 2 electrolysis device that can suppress a decrease in CO 2 reduction efficiency and be stably operated. An aspect of the present invention is a CO 2 electrolysis device including an electrode material. The CO 2 electrolysis device includes: a support including a conductive carrier and a catalyst supported on the conductive carrier, the catalyst including any one or more of particles of a metal complex, a metal, or an inorganic compound; and an anion exchange resin covering a part or the whole of the surface of the support and including an ionomer of the following formula (1): where m and n represent natural numbers of 1 to 200.

1 . A CO 2  electrolysis device including an electrode material, comprising:
 a support including a conductive carrier and a catalyst supported on the conductive carrier, the catalyst including any one or more of particles of a metal complex, a metal, or an inorganic compound; and   an anion exchange resin covering a part or a whole of a surface of the support and including an ionomer of the following formula (1):   
       
         
           
           
               
               
           
         
         where m and n represent natural numbers of 1 to 200. 
       
     
     
         2 . The CO 2  electrolysis device according to  claim 1 , wherein an ion exchange capacity of the anion exchange resin is 0.5 mmol/g or more and less than 3.5 mmol/g. 
     
     
         3 . The CO 2  electrolysis device according to  claim 1 or 2 , comprising:
 a membrane electrode assembly including the electrode material, a solid electrolyte, and a current collector,   wherein the electrode material is provided between the solid electrolyte and the current collector.   
     
     
         4 . The CO 2  electrolysis device according to  claim 3 , wherein the solid electrolyte is an anion exchange membrane. 
     
     
         5 . The CO 2  electrolysis device according to  claim 4 , wherein the anion exchange membrane includes an ionomer of the following formula (1): 
       
         
           
           
               
               
           
         
         where m and n represent natural numbers of 1 to 200. 
       
     
     
         6 . The CO 2  electrolysis device according to  claim 4 or 5 , wherein an ion exchange capacity of the anion exchange membrane is 0.3 mmol/g or more and less than 3.5 mmol/g.