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公开(公告)号：US11293109B2
公开(公告)日：2022-04-05
申请号：US17017427
申请日：2020-09-10
发明人： Akihiko Ono , Yuki Kudo , Yusuke Kofuji , Asahi Motoshige , Ryota Kitagawa , Masakazu Yamagiwa , Satoshi Mikoshiba
摘要： A carbon dioxide electrolytic device in an embodiment includes: an electrolysis cell including a cathode including a CO2 gas supply flow path, an anode, and a separator; a CO2 supply unit configured to supply CO2 gas to the gas supply flow path; and a rinse material supply unit configured to make a rinse material containing H2O flow through the CO2 gas supply flow path. The CO2 gas supply flow path includes a first opening provided on one end side, a second opening provided on another end side, and a third opening provided between the first opening and the second opening. The rinse material supply unit is configured to make the rinse material flow at least between the first opening and the third opening of the CO2 gas supply flow path.
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公开(公告)号：US11230772B2
公开(公告)日：2022-01-25
申请号：US16561705
申请日：2019-09-05
发明人： Akihiko Ono , Yuki Kudo , Ryota Kitagawa , Masakazu Yamagiwa , Jun Tamura , Satoshi Mikoshiba , Yoshitsune Sugano , Asahi Motoshige
IPC分类号： C25B15/08 , C25B9/05 , C25B9/23 , C25B1/23 , C25B3/26 , C25B15/029 , C25B1/04 , C25B15/02 , C25B9/73 , C25B9/65
摘要： A carbon dioxide electrolytic device includes: an electrolysis cell; a sensor acquiring data indicating a concentration of a first product containing a carbon compound in an anode flow path of the electrolysis cell; a power controller to apply a voltage between an anode and a cathode of the electrolysis cell; a refresh material source including a gas source to supply a gaseous substance to at least one selected from the group consisting of the anode and cathode flow paths, and a solution supply source to supply a rinse solution to at least one selected from the group consisting of the anode and cathode flow paths; and a controller programmed to stop supply of carbon dioxide and an electrolytic solution, and supply the rinse solution to at least one selected from the group consisting of the anode and cathode flow paths from the refresh material source, in accordance with the data.
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公开(公告)号：US10981848B2
公开(公告)日：2021-04-20
申请号：US16288145
申请日：2019-02-28
发明人： Akihiko Ono , Yuki Kudo , Ryota Kitagawa , Masakazu Yamagiwa , Jun Tamura , Satoshi Mikoshiba , Yoshitsune Sugano , Asahi Motoshige
摘要： A carbon dioxide electrolytic device includes: an electrolysis cell including a cathode, an anode, cathode and anode flow paths, and a separator; a carbon dioxide source to supply carbon dioxide to the cathode flow path; a solution source to supply an electrolytic solution containing water to the anode flow path; at least one sensor to acquire at least one data of a data indicating a discharge amount per unit time of a liquid containing water to be discharged from at least one flow path and a data indicating a concentration of at least one ion in the liquid; a refresh material source including a gas source to supply a gaseous substance to the at least one flow path; and a controller programmed to stop the supply of the carbon dioxide and the electrolytic solution, and start supply of a gaseous substance from the refresh material source, in accordance with the at least one data.
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公开(公告)号：US20210079542A1
公开(公告)日：2021-03-18
申请号：US16811697
申请日：2020-03-06
发明人： Ryota Kitagawa , Yusuke Kofuji , Asahi Motoshige , Masakazu Yamagiwa , Jun Tamura , Yuki Kudo , Akihiko Ono , Satoshi Mikoshiba
摘要： An electrochemical reaction device in an embodiment includes: an electrochemical reaction cell including a first accommodation part for accommodating carbon dioxide, a second accommodation part for accommodating an electrolytic solution containing water, or water vapor, a diaphragm provided between the first accommodation part and the second accommodation part, a reduction electrode arranged in the first accommodation part, and an oxidation electrode arranged in the second accommodation part; a detection unit detecting a reaction amount in the electrochemical reaction cell; a regulation unit regulating an amount of the carbon dioxide to be supplied to the first accommodation part; and a control unit controlling the regulation unit based on a detection signal of the detection unit.
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公开(公告)号：US10550488B2
公开(公告)日：2020-02-04
申请号：US15445646
申请日：2017-02-28
发明人： Arisa Yamada , Satoshi Mikoshiba , Akihiko Ono , Yuki Kudo , Jun Tamura , Ryota Kitagawa , Eishi Tsutsumi , Masakazu Yamagiwa , Yoshitsune Sugano , Asahi Motoshige , Tomohito Ide
摘要： The present embodiments provide: a reduction catalyst having high reaction efficiency, a reduction reactor including the same and a reduction method using the same. This catalyst includes a conductor and an organic layer comprises organic modifying groups capable of binding to the surface of the conductor, wherein the organic modifying groups contain a nitrogen-containing heterocycle.
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公开(公告)号：US10308574B2
公开(公告)日：2019-06-04
申请号：US15698394
申请日：2017-09-07
发明人： Jun Tamura , Satoshi Mikoshiba , Yuki Kudo , Akihiko Ono , Ryota Kitagawa , Masakazu Yamagiwa , Eishi Tsutsumi , Yoshitsune Sugano
IPC分类号： B01J27/24 , C07C29/136 , C07C29/14 , C07C29/15 , C07C29/153 , C07C31/20 , B01J31/26 , B01J31/28 , B01J31/38 , C25B3/04 , C07C211/62 , C07D233/54 , C25B1/00 , C25B1/04 , C25B9/08 , G01N23/2273 , G01N21/35 , H01J37/28
摘要： According to one embodiment, a reduction catalyst includes a current collector including a metal layer; and organic molecules including a quaternary nitrogen cation, which are bonded to the metal layer. The organic molecules are represented by any of the following general formulae I to V.
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公开(公告)号：US10196748B2
公开(公告)日：2019-02-05
申请号：US14953182
申请日：2015-11-27
发明人： Jun Tamura , Satoshi Mikoshiba , Akihiko Ono , Chingchun Huang , Yuki Kudo , Ryota Kitagawa , Eishi Tsutsumi , Yoshitsune Sugano
摘要： According to one embodiment, a reduction catalyst includes a charge collector having a metal layer on a surface; and a modified organic molecule bound to a surface of the metal layer and containing a quaternary nitrogen cation.
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公开(公告)号：US10100418B2
公开(公告)日：2018-10-16
申请号：US15261446
申请日：2016-09-09
发明人： Jun Tamura , Satoshi Mikoshiba , Akihiko Ono , Yuki Kudo , Ryota Kitagawa , Chingchun Huang
摘要： According to one embodiment, an oxidation electrode includes: a collector; an oxidation catalyst formed on the collector; and a modified organic molecule which is bonded to the surface of the oxidation catalyst, and comprises a cationic functional group.
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公开(公告)号：US20180274109A1
公开(公告)日：2018-09-27
申请号：US15703364
申请日：2017-09-13
发明人： Yuki Kudo , Akihiko Ono , Ryota Kitagawa , Masakazu Yamagiwa , Eishi Tsutsumi , Yoshitsune Sugano , Jun Tamura , Satoshi Mikoshiba
摘要： A carbon dioxide electrolytic device of an embodiment includes: an electrolysis cell including a cathode, an anode, a carbon dioxide supply unit, an electrolytic solution supply unit, and a separator; a power supply; a reaction control unit which causes a reduction reaction and an oxidation reaction by passing an electric current from the power supply to the anode and the cathode; a refresh material supply unit including a gas supply unit which supplies a gaseous substance to at least one of the anode and the cathode; and a refresh control unit which stops supply of the current from the power supply and supply of carbon dioxide and an electrolytic solution, and operates the refresh material supply unit, based on request criteria of a cell output of the electrolysis cell.
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公开(公告)号：US10062520B2
公开(公告)日：2018-08-28
申请号：US15249900
申请日：2016-08-29
发明人： Ryota Kitagawa , Yoshitsune Sugano , Chingchun Huang , Eishi Tsutsumi , Jun Tamura , Akihiko Ono , Yuki Kudo , Satoshi Mikoshiba
IPC分类号： C25B1/00 , C25B9/08 , C25B1/06 , C25B11/04 , C25D5/54 , C25D9/04 , C25D5/02 , C25D7/12 , C25D9/08 , C25D9/10 , C25D11/10 , C25D11/02 , H01G9/20 , B82Y40/00 , C25B9/06
CPC分类号： H01G9/2027 , B82Y40/00 , C25B1/00 , C25B1/003 , C25B1/06 , C25B9/066 , C25B9/08 , C25B11/0405 , C25B11/0447 , C25B11/0452 , C25B11/0473 , C25B11/0478 , C25D5/022 , C25D5/54 , C25D7/12 , C25D7/126 , C25D9/04 , C25D9/08 , C25D9/10 , C25D11/022 , C25D11/10 , H01L2251/308 , Y02E10/542 , Y02E60/366 , Y02P20/135 , Y02P70/521
摘要： A photo-electrochemical cell of an embodiment includes: a first electrode which has a transparent conductive film provided on a first surface of a photoelectric conversion layer; a first catalyst layer provided on the first electrode; a second electrode provided on a second surface of the photoelectric conversion layer; and a second catalyst layer provided on the second electrode. The first catalyst layer has a plurality of catalyst parts disposed on the first electrode and a transparent dielectric part disposed in a gap between the plurality of catalyst parts.
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