Patent ID: 9708717
Date: 2017-07-18
CPC Classifications: C25B,H01G,H01L,Y02E

Claim:
1. A photochemical reaction device, comprising: a laminated body comprising: an oxidation catalyst layer for producing oxygen and protons by oxidizing water; a reduction catalyst layer for producing carbon compounds by reducing carbon dioxide; and a semiconductor layer formed between the oxidation catalyst layer and the reduction catalyst layer and developing charge separation with light energy; and an electrolytic tank comprising the laminated body therein and comprising an oxidation reaction electrolytic tank disposed on the oxidation catalyst layer side and a reduction reaction electrolytic tank disposed on the reduction catalyst layer side separated by the laminated body, wherein the laminated body has openings that comprise a first opening penetrating the laminated body for moving ions between the oxidation catalyst layer side and the reduction catalyst layer side, and a first planar shape size of a first area of the first opening is different from a second planar shape size of a second area of the first opening.