公开(公告)号：US20240218534A1

公开(公告)日：2024-07-04

申请号：US18488425

申请日：2023-10-17

申请人： HITACHI, LTD.

发明人： Hiromasa TAKAHASHI ,  Naoto FUKATANI ,  Daiko TAKAMATSU ,  Shin YABUUCHI ,  Jun HAYAKAWA

IPC分类号： C25B9/50 ,  C25B9/19 ,  C25B11/052 ,  C25B15/08

CPC分类号： C25B9/50 ,  C25B9/19 ,  C25B11/052 ,  C25B15/08

摘要： A photocatalytic apparatus is provided that uses a photovoltaic action for both electrodes and conjugates a photocatalytic action with the photovoltaic action to efficiently perform material transformation on the basis of a redox reaction on the electrodes using light energy. A photocatalytic apparatus includes a first electrode functioning as an anode and a second electrode functioning as a cathode. The first electrode includes a first transparent conductive substrate having light transmittivity and electrical conductivity, a first light power generation layer that is disposed on the first transparent conductive substrate and absorbs light to generate electrons and holes, and a photocatalytic layer that is disposed on the first light power generation layer and catalyzes an oxidation reaction when being irradiated with light. The second electrode includes a second transparent conductive substrate having light transmittivity and electrical conductivity, a second light power generation layer that is disposed on the second transparent conductive substrate and absorbs light to generate electrons and holes, and a catalytic layer that is disposed on the second light power generation layer and catalyzes a reduction reaction.

公开(公告)号：US20240139723A1

公开(公告)日：2024-05-02

申请号：US18485656

申请日：2023-10-12

申请人： Hitachi, Ltd.

发明人： Hiromasa TAKAHASHI ,  Shin YABUUCHI ,  Naoto FUKATANI ,  Daiko TAKAMATSU

IPC分类号： B01J35/00 ,  B01J7/00 ,  B01J21/02 ,  B01J21/06 ,  B01J23/02 ,  B01J23/10 ,  B01J23/20 ,  B01J23/22 ,  B01J23/30 ,  B01J23/42 ,  B01J23/46 ,  B01J23/50 ,  B01J23/58 ,  B01J23/60 ,  B01J23/648 ,  B01J23/68 ,  B01J23/75 ,  B01J23/755 ,  B01J27/04 ,  B01J27/14 ,  B01J27/198 ,  B01J27/24 ,  C01B3/04 ,  C01B13/02

CPC分类号： B01J35/004 ,  B01J7/00 ,  B01J21/02 ,  B01J21/063 ,  B01J23/02 ,  B01J23/10 ,  B01J23/20 ,  B01J23/22 ,  B01J23/30 ,  B01J23/42 ,  B01J23/462 ,  B01J23/464 ,  B01J23/468 ,  B01J23/50 ,  B01J23/58 ,  B01J23/60 ,  B01J23/6482 ,  B01J23/681 ,  B01J23/75 ,  B01J23/755 ,  B01J27/04 ,  B01J27/14 ,  B01J27/198 ,  B01J27/24 ,  C01B3/045 ,  C01B13/0207

摘要： To provide a photocatalyst decomposition apparatus that can supply a liquid phase containing a substance to be decomposed by a photocatalyst and that can perform decomposition of the substance more efficiently than in the related art. A photocatalyst decomposition system according to the invention includes: a gas phase generation apparatus configured to convert a liquid phase containing a decomposition object into a gas phase; and a photocatalyst member configured to come into contact with the gas phase to decompose the decomposition object by light from a light source. The photocatalyst member includes a base material formed of a porous material and a photocatalyst layer provided on a surface of the base material.

公开(公告)号：US20230094287A1

公开(公告)日：2023-03-30

申请号：US17682046

申请日：2022-02-28

申请人： Hitachi, Ltd.

发明人： Hiromasa TAKAHASHI ,  Shin YABUUCHI ,  Naoto FUKATANI ,  Futoshi FURUTA ,  Jun HAYAKAWA

IPC分类号： C01B3/08 ,  C01B3/50 ,  B01J35/00 ,  C25B1/04 ,  C25B9/23 ,  C25B15/08 ,  C25B1/55

摘要： A hydrogen production apparatus including a photocatalyst and generating hydrogen from water includes a wavelength separation unit separating sunlight by wavelength, an infrared light conversion unit converting infrared light separated by the wavelength separation unit to visible light, and an ultraviolet light conversion unit converting ultraviolet light separated by the wavelength separation unit to visible light.

公开(公告)号：US20180026171A1

公开(公告)日：2018-01-25

申请号：US15547636

申请日：2015-05-29

申请人： Hitachi, Ltd.

发明人： Yosuke KUROSAKI ,  Naoto FUKATANI ,  Jyun HAYAKAWA ,  Akinori NISHIDE ,  Shin YABUUCHI

IPC分类号： H01L35/20 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14

CPC分类号： H01L35/20 ,  B22F3/02 ,  B22F3/10 ,  C22C33/0207 ,  C22C33/0257 ,  C22C38/00 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C23C14/18 ,  C23C14/185

摘要： Provided is a thermoelectric conversion material formed from a full Heusler alloy represented by the composition formula: Fe2+α(Ti1−βM1β)1−α+γ(Al1−δM2δ)1−γ. M1 represents at least one element selected from the group consisting of V, Nb and Ta, and M2 represents at least one element selected from the group consisting of Group 13 elements except for Al and Group 14 elements, α satisfies the relation: 0