公开(公告)号：US20240261752A1

公开(公告)日：2024-08-08

申请号：US18543013

申请日：2023-12-18

Applicant: TOYOTA JIDOSHA KABUSHIKA KAISHA

Inventor： Ryota TOMIZAWA

IPC: B01J19/12 ,  B01J35/39 ,  C01B3/04 ,  C01B13/02

CPC classification number: B01J19/127 ,  B01J35/39 ,  C01B3/042 ,  C01B13/0207 ,  B01J2219/0877 ,  B01J2219/1203 ,  C01B2203/80

Abstract: The hydrogen gas production device includes a water tank in which a hydrogen-side photocatalyst is immersed in water in which a mediator is dispersed and hydrogen gas is generated by irradiation with light, and a mediator is oxidized; a light irradiation means for irradiating the hydrogen side photocatalyst with light; a water tank in which an oxygen-side photocatalyst is immersed in the water in which the mediator is dispersed and oxygen gas is generated by irradiation with light, and a light irradiation means for irradiating the oxygen side photocatalyst with light; and a water circulation unit for circulating water in which a mediator is dispersed between the hydrogen side and the oxygen side water tank, and a light source of the light irradiation means is a light emitting diode.