Carbon Dioxide Reduction Device
AssigneeNippon Telegraph and Telephone Corporation
InventorsSayumi Sato, Yuya Uzumaki, Yoko Ono, Takeshi Komatsu
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Abstract
Improvement in the efficiency of carbon dioxide reduction reaction is achieved. A gas supply unit having a plurality of pores is established in a lower portion of a reduction chamber, and carbon dioxide is supplied as bubbles into an aqueous solution. This can elevate a concentration of carbon dioxide dissolved in the aqueous solution without stirring the aqueous solution using a stirring bar, and render the concentration uniform in the aqueous solution. Therefore, the efficiency of reduction reaction of carbon dioxide in a reduction electrode can be improved.
Claims6
A carbon dioxide reduction device which causes reduction reaction in a reduction electrode by applying current to between an oxidation electrode and the reduction electrode, the carbon dioxide reduction device comprising:
- an oxidation chamber for dipping and disposing the oxidation electrode in an aqueous solution;
- a reduction chamber for dipping and disposing the reduction electrode in an aqueous solution;
- a proton exchange membrane disposed between the oxidation chamber and the reduction chamber;
- and
- a gas supply unit disposed in a lower portion of the reduction chamber and having a plurality of pores for supplying carbon dioxide as bubbles into the aqueous solution.
Dependencies are inferred from the claim text.