公开(公告)号：US10351961B2

公开(公告)日：2019-07-16

申请号：US15392440

申请日：2016-12-28

Applicant: FUJIFILM Corporation ,  Japan Technological Research Association of Artifical Photosynthetic Chemical Process

Inventor： Kohei Higashi ,  Naotoshi Sato

IPC: C25B1/00 ,  C25B9/08 ,  H01L31/04 ,  C25B11/04 ,  H01L31/032 ,  C25B1/10 ,  C25B15/02 ,  C25B9/00 ,  C01B3/04 ,  H01L31/072 ,  H01L31/0749

Abstract: Provided are a water decomposition apparatus and a water decomposition method that can maintain high gas generation efficiency even in an early stage of light irradiation and even in a case where time has elapsed and that can recover the gas generation amount of hydrogen gas or the like, can generate hydrogen gas or the like stably for a long time on an average, and can increase the integrated amount of generation of hydrogen for a long time, even in a case where time has elapsed and the gas generation amount of hydrogen gas or the like has decreased.

公开(公告)号：US10392714B2

公开(公告)日：2019-08-27

申请号：US15178962

申请日：2016-06-10

Applicant: FUJIFILM Corporation ,  JAPAN TECHNOLOGICAL RESEARCH ASSOCIATION OF ARTIFICAL PHOTOSYNTHETIC CHEMICAL PROCESS ,  THE UNIVERSITY OF TOKYO

Inventor： Naotoshi Sato ,  Kazunari Domen ,  Jiro Tsukahara

IPC: C25B9/00 ,  C25B9/18 ,  C25B1/00 ,  H01L31/072 ,  H01L31/0749 ,  C25B15/02 ,  C25B1/04 ,  C25B9/08 ,  C25B1/10 ,  C25B11/04 ,  C25B15/08 ,  H01L31/032 ,  H01L31/042

Abstract: Provided is an artificial-photosynthesis module, which decomposes an aqueous electrolyte solution into hydrogen and oxygen by means of light, including a photoelectric conversion unit that receives light to generate electrical energy; a hydrogen gas generating part that decomposes the aqueous electrolyte solution, using the electrical energy of the photoelectric conversion unit, and generates hydrogen gas; and an oxygen gas generating part that decomposes the aqueous electrolyte solution, using the electrical energy of the photoelectric conversion unit, and generates oxygen gas. The photoelectric conversion unit, the hydrogen gas generating part, and the oxygen gas generating part are electrically connected in series, and the hydrogen gas generating part and the oxygen gas generating part are arranged within an electrolytic chamber to which the aqueous electrolyte solution is supplied. The hydrogen gas generating part has an inorganic semiconductor film having a pn junction.