公开(公告)号：US20240287692A1

公开(公告)日：2024-08-29

申请号：US18569962

申请日：2022-03-29

Applicant: DE NORA PERMELEC LTD

Inventor： Takashi FURUSAWA ,  Akihiro KATO ,  Eri MIYAKAWA ,  Fabio TIMPANO ,  Alice CALDERARA

IPC: C25B11/063 ,  C25B1/04 ,  C25B11/093

CPC classification number: C25B11/063 ,  C25B1/04 ,  C25B11/093

Abstract: The object of the present invention is to provide an electrode having high durability and lower manufacturing costs and a method for manufacturing the same. An electrode comprising a coating that contains a mixed metal oxide on a valve metal substrate with an intermediate layer therebetween that contains an alloy that contains a titanium component and a tantalum component, wherein the molar ratio of metal elements in the mixed metal oxide is 35 to 48% for the total of an iridium element and a ruthenium element, 45 to 60% of a tin element, and 3 to 9% of a tantalum element, and the molar ratio of the iridium element to the total of the iridium element and the ruthenium element in the mixed metal oxide is 32 to 60% inclusive.

公开(公告)号：US20240263327A1

公开(公告)日：2024-08-08

申请号：US18569324

申请日：2022-07-01

Applicant: DE NORA PERMELEC LTD

Inventor： Awaludin ZAENAL ,  Akihiro KATO ,  Takaaki NAKAI ,  Osamu ARIMOTO ,  Akihiro MADONO ,  Sayaka FUKUDA

IPC: C25B11/061 ,  C25B1/04

CPC classification number: C25B11/061 ,  C25B1/04

Abstract: The present invention provides a simple method for producing an electrode having improved oxygen evolution reaction (OER) activity without a need for catalyst coating and an electrode produced by this production method. The method is a method for producing an electrode including a step of subjecting an electrically conductive substrate comprising a nickel alloy comprising 30 to 70% by mass of Ni and 30 to 70% by mass of Fe, provided that Ni+Fi=100% by mass, to a thermal treatment, and a step of etching the thermally treated electrically conductive substrate with an etchant comprising at least any acid of an organic acid and a weak inorganic acid. The electrode is an electrode that is produced by this production method and that is useful as an oxygen evolution anode or the like.

公开(公告)号：US20170130344A1

公开(公告)日：2017-05-11

申请号：US15129670

申请日：2015-03-24

Applicant: YOKOHAMA NATIONAL UNIVERSITY ,  DE NORA PERMELEC LTD

Inventor： Shigenori MITSUSHIMA ,  Yasutomo TAKAKUWA ,  Yoshinori NISHIKI ,  Akihiro KATO ,  Akiyoshi MANABE ,  Yasushi SATO ,  Kota MIYOSHI ,  Kojiro NAKAGAWA ,  Shinji OSHIMA

IPC: C25B3/04 ,  C25B13/08 ,  C25B11/04 ,  C25B9/00 ,  B01J19/08 ,  C25B11/03

CPC classification number: C25B3/04 ,  B01J19/088 ,  B01J2219/0809 ,  B01J2219/0815 ,  B01J2219/0824 ,  B01J2219/0877 ,  C07C5/10 ,  C07C2601/14 ,  C25B1/10 ,  C25B9/00 ,  C25B9/10 ,  C25B11/03 ,  C25B11/0405 ,  C25B11/0484 ,  C25B13/08 ,  C25B15/08 ,  Y02E60/366 ,  C07C13/18

Abstract: A device for producing an organic hydride 10 of an aspect of the present invention has an electrochemical cell provided with an anode 12 on a surface of an electrolyte membrane 11 and a cathode including a cathode catalyst layer 13 and a cathode diffusion layer 14 on another surface of the electrolyte membrane 11. A gap is provided between the anode 12 and the electrolyte membrane 11. The anode 12 has a network structure with an aperture ratio of 30 to 70%, and has an electrical supply supporting material formed of an electronic conductor and the electrode catalyst held by the electrical supply supporting material.

公开(公告)号：US20160312371A1

公开(公告)日：2016-10-27

申请号：US15103924

申请日：2014-12-16

Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA ,  DE NORA PERMELEC LTD ,  THYSSENKRUPP UHDE CHLORINE ENGINEERS (JAPAN) LTD.

Inventor： Yuji KAMEI ,  Koki TAGUCHI ,  Ikuo SHIMOMURA ,  Takafumi ITO ,  Jun KAWAGUCHI ,  Tomonori TAKASE ,  Akihiro KATO ,  Akiyoshi MANABE ,  Terumi HASHIMOTO

IPC: C25B13/08 ,  C25B1/10 ,  C25B9/08

CPC classification number: C25B13/08 ,  C25B1/10 ,  C25B9/08 ,  Y02E60/366

Abstract: An alkaline water electrolysis diaphragm includes: a polymer porous layer containing at least one polymer compound selected from polyether sulfone having a contact angle of 20 to 90° and polysulfone having the contact angle of 20 to 90°; and an organic fiber fabric layer coupled to the polymer porous layer. The polyether sulfone having the contact angle of 20 to 90° is at least one polymer compound selected from the group made of polyether sulfone, hydrophilic polyether sulfone, cationic polyether sulfone, and cationic hydrophilic polyether sulfone. The polysulfone having the contact angle of 20 to 90° is at least one polymer compound selected from the group made of polysulfone, hydrophilic polysulfone, cationic polysulfone, and cationic hydrophilic polysulfone.

Abstract translation: 碱性水电解隔膜包括：含有选自接触角为20〜90°的聚醚砜和接触角为20〜90°的聚砜的至少一种聚合物化合物的聚合物多孔层; 和与聚合物多孔层耦合的有机纤维织物层。 接触角为20〜90°的聚醚砜为选自聚醚砜，亲水性聚醚砜，阳离子聚醚砜，阳离子亲水性聚醚砜等的至少一种聚合物。 接触角为20〜90°的聚砜是选自由聚砜，亲水性聚砜，阳离子聚砜和阳离子亲水聚砜组成的组中的至少一种聚合物。

公开(公告)号：US20230304174A1

公开(公告)日：2023-09-28

申请号：US18041133

申请日：2021-04-08

Applicant: DE NORA PERMELEC LTD

Inventor： Osamu ARIMOTO ,  Akihiro KATO ,  Takaaki NAKAI

IPC: C25B11/093 ,  C25B1/04 ,  C25B11/052

CPC classification number: C25B11/093 ,  C25B1/04 ,  C25B11/052

Abstract: Provided is an anode for alkaline water electrolysis comprising a conductive substrate and a coating formed on a surface of the conductive substrate, wherein the coating comprises



1) a lithium-containing nickel oxide,
2) an iridium oxide, and
3) at least one of a strontium oxide, a lanthanum oxide, and a calcium oxide.

公开(公告)号：US20200080212A1

公开(公告)日：2020-03-12

申请号：US16686369

申请日：2019-11-18

Applicant: National University Corporation YOKOHAMA National University ,  DE NORA PERMELEC LTD

Inventor： Shigenori MITSUSHIMA ,  Kensaku NAGASAWA ,  Yoshinori NISHIKI ,  Setsuro OGATA ,  Akihiro KATO ,  Awaludin ZAENAL ,  Koji MATSUOKA ,  Yasushi SATO

IPC: C25B11/03 ,  C25B3/04 ,  C25B9/02

Abstract: An organic hydride production apparatus includes: an electrolyte membrane having proton conductivity; a cathode, provided on one side of the electrolyte membrane, that contains a cathode catalyst used to hydrogenate a hydrogenation target substance using protons to produce an organic hydride; an anode, provided opposite to the one side of the electrolyte membrane, that contains an anode catalyst used to oxidize water to produce protons; and an anode support, provided opposite to the electrolyte membrane side of the anode, that supports the anode. The anode support is formed of an elastic porous body of which the Young's modulus is greater than 0.1 N/mm2 and less than 43 N/mm2.

公开(公告)号：US20250051931A1

公开(公告)日：2025-02-13

申请号：US18722246

申请日：2022-09-29

Applicant: NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY ,  DE NORA PERMELEC LTD

Inventor： Ryuta MISUMI ,  Shigenori MITSUSHIMA ,  Hayata IKEDA ,  Yoshinori NISHIKI ,  Akihiro KATO ,  Takaaki NAKAI

IPC: C25B1/02 ,  C25B1/26

Abstract: There is provided an aqueous solution electrolysis method that makes it possible to reduce the amount of bubbles covering an electrode and generate gases such as hydrogen and oxygen with excellent energy efficiency. The method is an electrolysis method for electrolyzing an aqueous-solution-based electrolyte to generate at least any one of hydrogen, oxygen, and chlorine, wherein the electrolyte contains a water-soluble alcohol. For example, as the electrolyte, an alkali aqueous solution containing about 0.1 to about 10% by volume of a water-soluble alcohol including a tertiary alcohol, such as 2-methylpropan-2-ol and 2-methylbutan-2-ol, and about 1 to 10 mol/L of an alkali component may be subjected to water electrolysis, and the electrolyte is electrolyzed using, for example, an electrolytic cell having an anode chamber and a cathode chamber.

公开(公告)号：US20180171494A1

公开(公告)日：2018-06-21

申请号：US15737451

申请日：2016-05-16

Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA ,  DE NORA PERMELEC LTD ,  THYSSENKRUPP UHDE CHLORINE ENGINEERS (JAPAN) LTD.

Inventor： Takafumi ITO ,  Ikuo SHIMOMURA ,  Yuji KAMEI ,  Akiyoshi MANABE ,  Akihiro KATO ,  Terumi HASHIMOTO

IPC: C25B13/02 ,  C25B1/10 ,  C25B13/08

CPC classification number: C25B13/02 ,  C25B1/10 ,  C25B13/08 ,  Y02E60/366

Abstract: A diaphragm includes a porous supporting body and a polymer porous membrane. When one of surfaces of the porous membrane is defined as a surface A, the other surface opposite to the surface A is defined as a surface B, a section of the porous membrane parallel to the surfaces A and B is defined as a section C, an average pore diameter on the surface A is defined as an average pore diameter DA, an average pore diameter on the surface B is defined as an average pore diameter DB, and an average pore diameter on the section C is defined as an average pore diameter DC, the average pore diameters DA and DB are substantially equal to each other, and the average pore diameter DC is larger than each of the average pore diameters DA and DB.

公开(公告)号：US20170321331A1

公开(公告)日：2017-11-09

申请号：US15525419

申请日：2015-11-19

Applicant: NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY ,  DE NORA PERMELEC LTD.

Inventor： Shigenori MITSUSHIMA ,  Yasutomo TAKAKUWA ,  Awaludin ZAENAL ,  Akihiro KATO

IPC: C25B3/04 ,  C25B11/04 ,  C07C29/20 ,  C01B3/00 ,  C07C29/132 ,  C01B13/02 ,  C25B1/04

CPC classification number: C25B3/04 ,  C01B3/0005 ,  C01B13/0207 ,  C01B13/0248 ,  C07C29/132 ,  C07C29/20 ,  C25B1/04 ,  C25B11/0415 ,  C25B11/0431 ,  C25B11/0473 ,  C25B11/0484 ,  Y02E60/324 ,  Y02E60/366

Abstract: An anode for oxygen evolution that operates at a small overpotential and in a stable manner, and can be used favorably in an organic chemical hydride electrolytic synthesis apparatus.An anode 10 for oxygen evolution that evolves oxygen in a sulfuric acid aqueous solution containing a substance to be hydrogenated dissolved at a concentration higher than 1 mg/L, wherein an anode substrate 10a is composed of a valve metal, and an anode catalyst layer 10b containing at least one oxide, nitride or carbide of iridium, and at least one oxide, nitride or carbide of at least one metal selected from the group consisting of elements belonging to groups 4, 5 and 13 of the periodic table is formed on the surface of the anode substrate 10a.

公开(公告)号：US20230109702A1

公开(公告)日：2023-04-13

申请号：US17905232

申请日：2021-03-08

Applicant: DE NORA PERMELEC LTD ,  KAWASAKI JUKOGYO KABUSHIKI KAISHA ,  NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY

Inventor： Shigenori MITSUSHIMA ,  Yoshiyuki KURODA ,  Shohei TAKATSU ,  Ikuo NAGASHIMA ,  Tatsuya TANIGUCHI ,  Akihiko INOMATA ,  Ayaka NAGAI ,  Yoshinori NISHIKI ,  Akihiro KATO ,  Awaludin ZAENAL ,  Takaaki NAKAI

IPC: C25B11/052 ,  C25B1/04 ,  C25B11/061 ,  C25B11/077 ,  C25B15/08 ,  C25B15/029

Abstract: The present invention realizes industrially excellent effects such that when electric power having a large output fluctuation, such as renewable energy, is used as a power source, electrolysis performance is unlikely to be deteriorated and excellent catalytic activity is retained stably over a longer period of time, and in addition, the present invention provides a technique that enables forming a catalyst layer of an oxygen generation anode, which gives such excellent effects, with a more versatile materials and by a simple electrolysis method. Provided are an alkaline water electrolysis method including supplying an electrolyte obtained by dispersing a catalyst containing a hybrid nickel-iron hydroxide nanosheet (NiFe-ns) being a composite of a metal hydroxide and an organic substance to an anode chamber and a cathode chamber, and using the electrolyte for electrolysis in each chamber in common, an alkaline water electrolysis method including supplying an electrolyte obtained by dispersing a catalyst containing the NiFe-ns to an anode chamber and a cathode chamber, and performing electrolytic deposition of the NiFe-ns in the electrolytic cell during operation to electrolytically deposit the NiFe-ns on a surface of an electrically conductive substrate having a catalyst layer formed on a surface of an oxygen generation anode, thereby recovering and improving electrolysis performance, and an alkaline water electrolysis anode.