公开(公告)号：US20170250031A1

公开(公告)日：2017-08-31

申请号：US15476116

申请日：2017-03-31

Applicant: MITSUBISHI CHEMICAL CORPORATION ,  The University of Tokyo ,  Japan Technological Research Association of Artificial Photosynthetic Chemical Process

Inventor： Seiji AKIYAMA ,  Kazunari Domen

IPC: H01G9/20 ,  C25B1/04

CPC classification number: H01G9/2036 ,  B01J27/24 ,  B01J35/004 ,  B01J37/343 ,  C01B3/042 ,  C25B1/04 ,  Y02E60/364 ,  Y02E60/366

Abstract: The present invention provides a method of producing a composite photocatalyst having a remarkable water splitting activity, which is capable of efficiently loading a co-catalyst having a small particle size in a highly dispersed manner on a surface of an optical semiconductor. According to the present invention, the method of producing a composite photocatalyst from a plurality types of optical semiconductors includes a step of heating a solid-liquid mixture containing a solvent, a co-catalyst or a co-catalyst source, and a plurality of types of optical semiconductors by irradiating the solid-liquid mixture with microwave.

公开(公告)号：US20170191172A1

公开(公告)日：2017-07-06

申请号：US15462367

申请日：2017-03-17

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

Inventor： Hiroshi NAGATE ,  Naotoshi SATO

IPC: C25B1/00 ,  C25B9/06 ,  C25B11/04 ,  C25B15/08 ,  H01G9/20 ,  C25B1/06 ,  C25B9/18

CPC classification number: C25B1/003 ,  C25B1/06 ,  C25B1/10 ,  C25B9/06 ,  C25B9/18 ,  C25B11/02 ,  C25B11/0405 ,  C25B11/0415 ,  C25B11/0473 ,  C25B15/08 ,  H01G9/2013 ,  H01G9/2068 ,  Y02E60/366

Abstract: An artificial photosynthesis module is used for decomposition of an electrolytic aqueous solution into hydrogen and oxygen by light. The artificial photosynthesis module has an oxygen generation electrode having a first protrusion and a first recess alternately arranged thereon, and a hydrogen generation electrode having a second protrusion and a second recess alternately arranged thereon. The hydrogen generation electrode and the oxygen generation electrode are in contact with the electrolytic aqueous solution, and at least one electrode of the hydrogen generation electrode or the oxygen generation electrode includes a conductive layer and a photocatalyst layer provided on the conductive layer. The hydrogen generation electrode and the oxygen generation electrode are arranged side by side, the second protrusion of the oxygen generation electrode faces the first recess of the hydrogen generation electrode in an arrangement direction, and the first protrusion faces the second recess in the arrangement direction.

公开(公告)号：US20170107631A1

公开(公告)日：2017-04-20

申请号：US15392440

申请日：2016-12-28

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

Inventor： Kohei HIGASHI ,  Naotoshi SATO

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

CPC classification number: C25B1/003 ,  C01B3/042 ,  C25B1/10 ,  C25B9/00 ,  C25B9/08 ,  C25B11/04 ,  C25B11/0447 ,  C25B15/02 ,  H01L31/0322 ,  H01L31/0326 ,  H01L31/04 ,  H01L31/072 ,  H01L31/0749 ,  Y02E10/541 ,  Y02E60/368

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：US20160281241A1

公开(公告)日：2016-09-29

申请号：US15178769

申请日：2016-06-10

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

Inventor： Kohei HIGASHI ,  Kazunari DOMEN ,  Jiro TSUKAHARA

IPC: C25B1/00 ,  H01G9/20 ,  C25B1/04 ,  H01L31/032 ,  H01L31/05

CPC classification number: C25B1/003 ,  C25B1/04 ,  C25B9/08 ,  C25B15/02 ,  H01G9/20 ,  H01L31/0322 ,  H01L31/0326 ,  H01L31/0463 ,  H01L31/0504 ,  H01L31/0749 ,  Y02E10/541 ,  Y02E60/368 ,  Y02P70/521

Abstract: A water electrolysis system decomposes an aqueous electrolyte solution into hydrogen and oxygen using light. The water electrolysis system includes a plurality of photoelectric conversion units that have at least one photoelectric conversion element and receive light to generate electrical energy, and a plurality of electrolyte cells in which hydrogen gas and oxygen gas are generated by electrolyzing the aqueous electrolyte solution using the electrical energy obtained by the photoelectric conversion units. The photoelectric conversion units and the electrolyte cells are electrically connected in series. The electrolyte cells are arranged between the photoelectric conversion units, and the photoelectric conversion units or the electrolyte cells located at respective ends in an arrangement state are electrically connected together.

Abstract translation: 水电解系统使用光将电解质水溶液分解成氢和氧。 水电解系统包括具有至少一个光电转换元件并接收光以产生电能的多个光电转换单元，以及多个电解质电池，其中通过使用该电解质电解电解含水电解质溶液而产生氢气和氧气 由光电转换单元获得的电能。 光电转换单元和电解质电池串联电连接。 电解质电池被布置在光电转换单元之间，位于各端的光电转换单元或电解质单元电连接在一起。

公开(公告)号：US20160028092A1

公开(公告)日：2016-01-28

申请号：US14772643

申请日：2014-03-04

Applicant: TOKYO UNIVERSITY OF SCIENCE FOUNDATION ,  MITSUI CHEMICALS, INC. ,  JAPAN TECHNOLOGICAL RESEARCH ASSOCIATION OF ARTIFICIAL PHOTOSYNTHETIC CHEMICAL PROCESS

Inventor： Akihiko KUDO ,  Qingxin JIA ,  Akihide IWASE

IPC: H01M4/90 ,  C25B11/04 ,  H01M4/88

CPC classification number: H01M4/9016 ,  B01J23/14 ,  B01J23/22 ,  B01J27/135 ,  B01J35/002 ,  B01J35/004 ,  B01J37/346 ,  C25B11/0478 ,  H01M4/8842

Abstract: A new BiVO4-laminate manufacturing method and BiVO4 laminate are provided. A bismuth-vanadate laminate is manufactured as follows: a substrate that can be heated by microwaves is disposed inside a precursor solution containing a vanadium salt and a bismuth salt, microwave-activated chemical bath deposition (MW-CBD) is used to form a bismuth-vanadate layer on the substrate, and a firing process is performed as necessary. A bismuth-vanadate laminate manufactured in this way is suitable for use as a photocatalyst or photoelectrode.

Abstract translation: 提供了一种新的BiVO4层压板制造方法和BiVO4层压板。 铋 - 钒酸盐层压体如下制造：将可通过微波加热的基材置于含有钒盐和铋盐的前体溶液的内部，微波活化化学浴沉积（MW-CBD）用于形成铋 - 钒酸盐层，并且根据需要进行焙烧处理。 以这种方式制造的铋钒酸盐层压板适合用作光催化剂或光电极。