公开(公告)号：US11766667B2

公开(公告)日：2023-09-26

申请号：US17195087

申请日：2021-03-08

Applicant: Mitsubishi Chemical Corporation ,  JAPAN TECHNOLOGICAL RESEARCH ASSOCIATION OF ARTIFICIAL PHOTOSYNTHETIC CHEMICAL PROCESS

Inventor： Hiroaki Onozuka ,  Masahiro Hara ,  Masato Yoshioka ,  Toshiyuki Yokoi

IPC: B01J29/70 ,  B01D53/00 ,  C07C11/06 ,  C07C11/04 ,  C07C11/08 ,  C07C1/20 ,  B01J35/00 ,  B01J29/76 ,  B01J29/72 ,  B01D53/94 ,  B01J29/48 ,  B01J37/04 ,  B01J20/18 ,  B01J20/28 ,  C01B39/48 ,  B01J35/02 ,  C01B39/04

CPC classification number: B01J29/70 ,  B01D53/00 ,  B01D53/9418 ,  B01J20/18 ,  B01J20/28002 ,  B01J20/28004 ,  B01J20/28011 ,  B01J29/48 ,  B01J29/72 ,  B01J29/76 ,  B01J35/002 ,  B01J35/023 ,  B01J37/04 ,  C01B39/48 ,  C07C1/20 ,  C07C11/04 ,  C07C11/06 ,  C07C11/08 ,  B01D2255/104 ,  B01D2255/106 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1028 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2066 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/20738 ,  B01D2255/20746 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/9202 ,  B01D2255/9205 ,  B01D2255/9207 ,  C01B39/04 ,  C07C2529/70 ,  Y02P20/52 ,  Y02P30/20 ,  Y02P30/40 ,  C07C1/20 ,  C07C11/06 ,  C07C1/20 ,  C07C11/08

Abstract: A CON zeolite satisfying the following (1) to (2): (1) The framework is CON as per the code specified by the International Zeolite Association (IZA); and (2) It contains silicon and aluminum, and the molar ratio of aluminum to silicon is 0.04 or more.

公开(公告)号：US11424080B2

公开(公告)日：2022-08-23

申请号：US16400461

申请日：2019-05-01

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

Inventor： Seiji Akiyama ,  Kazunari Domen

IPC: H01G9/00 ,  H01G9/20 ,  B01J37/34 ,  B01J27/24 ,  B01J35/02 ,  C01B3/04 ,  B01J35/00 ,  C25B1/04

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：US10384195B2

公开(公告)日：2019-08-20

申请号：US16109511

申请日：2018-08-22

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

Inventor： Hiroyuki Kobayashi

IPC: B01J23/847 ,  B01J35/02 ,  C01B3/04 ,  C25B1/04 ,  C25B9/00 ,  C25B1/00 ,  C25B13/04

Abstract: An artificial photosynthesis module includes an oxygen generation electrode having a first photocatalyst layer that decomposes water with light to generate oxygen, and has a first substrate, a first conductive layer, a first photocatalyst layer, and a first co-catalyst, and a hydrogen generation electrode that decomposes water with light to generate hydrogen and has a second substrate, a second conductive layer, a second photocatalyst layer, and a second co-catalyst. This provides an artificial photosynthesis module with high reaction efficiency.

公开(公告)号：US10030311B2

公开(公告)日：2018-07-24

申请号：US15413717

申请日：2017-01-24

Applicant: FUJIFILM Corporation ,  Japan Technological Research Association of Artificial Photosynthetic Chemical Process ,  THE UNIVERSITY OF TOKYO

Inventor： Naotoshi Sato ,  Kazunari Domen

IPC: C25B1/04 ,  C25B1/02 ,  C25B11/04 ,  C25B9/06 ,  C25B1/00 ,  H01G9/20

Abstract: A hydrogen generation electrode is used for an artificial photosynthesis module that decomposes an electrolytic aqueous solution into hydrogen and oxygen with light. The hydrogen generation electrode has a conductive layer, an inorganic semiconductor layer that is provided on the conductive layer and has a pn junction, and a functional layer that covers an inorganic semiconductor layer. The steam permeability of the functional layer is 5 g/(m2·day) or less.

公开(公告)号：US20240328012A1

公开(公告)日：2024-10-03

申请号：US18743226

申请日：2024-06-14

Applicant: MITSUBISHI CHEMICAL CORPORATION ,  SHINSHU UNIVERSITY ,  JAPAN TECHNOLOGICAL RESEARCH ASSOCIATION OF ARTIFICIAL PHOTOSYNTHETIC CHEMICAL PROCESS

Inventor： Hiroaki YOSHIDA ,  Susumu TSUTSUMINAI ,  Nobuko KARIYA ,  Kazunari DOMEN ,  Takashi HISATOMI ,  Lihua LIN ,  Xiaoping TAO ,  Xizhuang LIANG

IPC: C25B11/087 ,  B01J19/12 ,  C25B1/04 ,  C25B1/55 ,  C25B9/50

CPC classification number: C25B11/087 ,  B01J19/127 ,  C25B1/04 ,  C25B1/55 ,  C25B9/50 ,  B01J2219/089 ,  B01J2219/0892 ,  B01J2219/12

Abstract: Provided is a photocatalyst with significantly enhanced water splitting performance in YTOS or in a composition in which the yttrium element of YTOS has been replaced with another element. Also provided is a method for producing a photocatalyst that has a composition represented by the following general formula (I), the method including mixing, with a raw material of the photocatalyst, a flux component at a mass ratio of 0.01 times to 50 times, the flux component being composed of one or more chlorides and/or iodides of at least one selected from Li, Na, K, Rb, Mg, Ca, Sr, and Ba, and calcining a resultant product at 450° C. to 1050° C.:


MaTibOcSd  (I)

(where M is a combination of one or more selected from Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Y, a is a number of 1.7 to 2.3, b is a number of 2, c is a number of 4.7 to 5.3, and d is a number of 1.7 to 2.3).

公开(公告)号：US10914013B2

公开(公告)日：2021-02-09

申请号：US15914731

申请日：2018-03-07

Applicant: FUJIFILM Corporation ,  Japan Technological Research Association of Artificial Photosynthetic Chemical Process ,  THE UNIVERSITY OF TOKYO

Inventor： Kazunari Domen ,  Tsutomu Minegishi ,  Atsushi Ohnishi ,  Koichiro Ueda ,  Chisato Katayama ,  Hiroyuki Kobayashi

IPC: C25B11/04 ,  C25B1/04 ,  C25B1/00 ,  C25B9/06

Abstract: Provided are a photocatalyst electrode for oxygen generation exhibiting a satisfactory onset potential, and a module including this photocatalyst electrode. The photocatalyst electrode for oxygen generation includes a current collector layer; a photocatalyst on the current collector layer; and a promoter supported on at least a portion of the photocatalyst, in which the promoter contains a first metal oxide having an oxygen generation overvoltage of 0.4 V or lower, and a second metal oxide having an oxygen generation overvoltage of higher than 0.4 V.

公开(公告)号：US20200240028A1

公开(公告)日：2020-07-30

申请号：US16850725

申请日：2020-04-16

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

Inventor： Hiroyuki KOBAYASHI ,  Taisei NISHIMI ,  Hiroshi NAGATE

IPC: C25B13/08 ,  C25B1/10 ,  B01D69/10 ,  B01D67/00 ,  C25B9/08

Abstract: An object of the invention is to provide a water splitting device having a low electrolysis voltage and excellent gas separation performance. The water splitting device of the invention is a water splitting device that generates gases from the positive electrode and the negative electrode, the water splitting device including: a bath to be filled with an electrolytic aqueous solution; the positive electrode and the negative electrode disposed in the bath; and a polymer membrane that is ion-permeable and is disposed between the positive electrode and the negative electrode in order to separate the electrolytic aqueous solution filling the bath into the positive electrode side and the negative electrode side, wherein the positive electrode and the negative electrode are installed at a predetermined distance from the polymer membrane, and the moisture content of the polymer membrane is 40% or more.

公开(公告)号：US10320005B2

公开(公告)日：2019-06-11

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: H05B6/64 ,  H01M4/90 ,  C23C18/12 ,  C23C18/14 ,  B01J23/22 ,  B01J37/34 ,  B01J23/14 ,  B01J35/00 ,  C25B11/04 ,  H01M4/88 ,  B01J27/135

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.

公开(公告)号：US20170130346A1

公开(公告)日：2017-05-11

申请号：US15413717

申请日：2017-01-24

Applicant: FUJIFILM Corporation ,  Japan Technological Research Association of Artificial Photosynthetic Chemical Process ,  THE UNIVERSITY OF TOKYO

Inventor： Naotoshi SATO ,  Kazunari DOMEN

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

CPC classification number: C25B11/0405 ,  C01B3/04 ,  C25B1/003 ,  C25B9/06 ,  C25B11/02 ,  C25B11/0478 ,  C25B11/0484 ,  H01G9/2045 ,  Y02E60/368

Abstract: A hydrogen generation electrode is used for an artificial photosynthesis module that decomposes an electrolytic aqueous solution into hydrogen and oxygen with light. The hydrogen generation electrode has a conductive layer, an inorganic semiconductor layer that is provided on the conductive layer and has a pn junction, and a functional layer that covers an inorganic semiconductor layer. The steam permeability of the functional layer is 5 g/(m2·day) or less.

公开(公告)号：US20160010218A1

公开(公告)日：2016-01-14

申请号：US14865334

申请日：2015-09-25

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

Inventor： Kohei HIGASHI

IPC: C25B1/00 ,  C25B1/10 ,  H01L31/072 ,  H01L31/046 ,  H01L31/05 ,  H01L31/0749

CPC classification number: C25B1/003 ,  C25B1/10 ,  C25B11/04 ,  H01L31/02167 ,  H01L31/02363 ,  H01L31/046 ,  H01L31/0465 ,  H01L31/0512 ,  H01L31/0516 ,  H01L31/072 ,  H01L31/0749 ,  Y02E10/541 ,  Y02E60/366 ,  Y02P20/134 ,  Y02P70/521

Abstract: A gas production apparatus is provided which includes: a module including a plurality of PN junctions connected in series to one another, each being formed of an inorganic semiconductor and having a light receiving surface; two gas generators that are provided at open ends of PN junctions at both extremities of the module, respectively, on a side of the light receiving surface; an electrolysis chamber which contains an aqueous electrolytic solution in contact with the two gas generators and contains gases generated by the two gas generators; and a diaphragm which is ion-permeable but gas-impermeable, and partitions the electrolysis chamber into two regions including the two gas generators, respectively, and containing hydrogen and oxygen, respectively.

Abstract translation: 提供了一种气体制备装置，其包括：模块，包括彼此串联连接的多个PN结，每个PN结由无机半导体形成并具有光接收表面; 两个气体发生器分别设置在光接收表面一侧的模块两端的PN结开口端; 电解室，其含有与两个气体发生器接触的含水电解液，并含有由两个气体发生器产生的气体; 以及隔膜，其是离子可渗透但不透气的隔膜，并且分别将电解室分隔成包括两个气体发生器的两个区域，并分别包含氢气和氧气。