PHOTOCHEMICAL REACTION SYSTEM

摘要

According to one embodiment, a photochemical reaction system comprises a CO2 production unit, a CO2 absorption unit, and a CO2 reduction unit. The CO2 reduction unit comprises a laminated body and an ion transfer pathway. The laminated body comprises an oxidation catalyst layer producing O2 and H+ by oxidizing H2O, a reduction catalyst layer producing carbon compounds by reducing CO2 absorbed by the CO2 absorption unit, and a semiconductor layer formed between the oxidation catalyst layer and the reduction catalyst layer and develops charge separation with light energy. The ion transfer pathways make ions move between the oxidation catalyst layer side and the reduction catalyst layer side.

主权项

1. A photochemical reaction system, comprising:
a CO2 production unit producing CO2; a CO2 absorption unit absorbing CO2 produced by the CO2 production unit; and a CO2 reduction unit comprising: a laminated body comprising: an oxidation catalyst layer producing O2 and H+ by oxidizing H2O; a reduction catalyst layer producing carbon compounds by reducing CO2 absorbed by the CO2 absorption unit; and a semiconductor layer formed between the oxidation catalyst layer and the reduction catalyst layer and developing charge separation with light energy; and an ion transfer pathway making ions move between the oxidation catalyst layer side and the reduction catalyst layer side, wherein the oxidation catalyst layer oxidizes a reductant and the reduction catalyst layer reduces CO2 by using an electron generated by oxidizing of the reductant.