公开(公告)号：US20230323547A1

公开(公告)日：2023-10-12

申请号：US18248848

申请日：2021-10-14

申请人： KYOTO UNIVERSITY ,  NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY ,  DE NORA PERMELEC LTD

发明人： Yoshiharu UCHIMOTO ,  Tomoki UCHIYAMA ,  Shigenori MITSUSHIMA ,  Yoshiyuki KURODA ,  Kensaku NAGASAWA ,  Yoshinori NISHIKI ,  Awaludin ZAENAL ,  Yun BAO

IPC分类号： C25B11/052 ,  C25B11/061 ,  C25B11/077 ,  C25B1/04 ,  C25B15/021

CPC分类号： C25B11/052 ,  C25B11/061 ,  C25B11/0771 ,  C25B1/04 ,  C25B15/021

摘要： The present invention provides an alkaline water electrolysis anode such that even when electric power having a large output fluctuation, such as renewable energy, is used as a power source, the electrolysis performance is unlikely to be deteriorated and excellent catalytic activity is retained stably over a long period of time. The alkaline water electrolysis anode is an alkaline water electrolysis anode 10 provided with an electrically conductive substrate 2 at least a surface of which contains nickel or a nickel base alloy and a catalyst layer 6 disposed on the surface of the electrically conductive substrate 2, the catalyst layer 6 containing a nickel-containing metal oxide having a spinel structure, wherein the nickel-containing metal oxide contains nickel (Ni) and manganese (Mn), and has an atom ratio of Li/Ni/Mn/O of (0.0 to 0.8)/(0.4 to 0.6)/(1.0 to 1.8)/4.0.

公开(公告)号：US20200080212A1

公开(公告)日：2020-03-12

申请号：US16686369

申请日：2019-11-18

申请人： National University Corporation YOKOHAMA National University ,  DE NORA PERMELEC LTD

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

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

摘要： 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：US20170321331A1

公开(公告)日：2017-11-09

申请号：US15525419

申请日：2015-11-19

申请人： NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY ,  DE NORA PERMELEC LTD.

发明人： Shigenori MITSUSHIMA ,  Yasutomo TAKAKUWA ,  Awaludin ZAENAL ,  Akihiro KATO

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

CPC分类号： 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

摘要： 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：US20230408444A1

公开(公告)日：2023-12-21

申请号：US18253458

申请日：2021-11-17

申请人： DE NORA PERMELEC LTD ,  NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY

发明人： Shigenori MITSUSHIMA ,  Yoshiyuki KURODA ,  Kensaku NAGASAWA ,  Ashraf ABDELHALEEM ,  Awaludin ZAENAL ,  Yoshinori NISHIKI

IPC分类号： G01N27/48

CPC分类号： G01N27/48 ,  C25B1/04

摘要： The present invention provides an accelerated evaluation method for an anode, the method imitating electric power having a large output fluctuation, such as renewable energy, and enabling an accurate evaluation, in a shorter time, of durability of an anode using such electric power having a large output fluctuation as a power source. The method is an accelerated evaluation method for an anode, the method performing evaluation of the durability of the anode in an accelerated manner by electrochemical operation in an aqueous electrolyte. The method includes a Je step of loading an oxidation current of 0.1 A/cm2 or more to the anode for a duration of Te and an Emin step of holding the anode at a constant potential lower than an open circuit potential for a duration of Train, wherein each of the Je step and the Emin step is repeated 100 times or more.

公开(公告)号：US20230109702A1

公开(公告)日：2023-04-13

申请号：US17905232

申请日：2021-03-08

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

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

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

摘要： 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.

公开(公告)号：US20220333257A1

公开(公告)日：2022-10-20

申请号：US17858464

申请日：2022-07-06

申请人： National University Corporation YOKOHAMA National University ,  DE NORA PERMELEC LTD

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

IPC分类号： C25B11/03 ,  C25B3/25 ,  C25B11/055

摘要： 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：US20190352786A1

公开(公告)日：2019-11-21

申请号：US16349768

申请日：2017-10-18

申请人： National University Corporation YOKOHAMA National University ,  DE NORA PERMELEC LTD

发明人： Shigenori MITSUSHIMA ,  Kensaku NAGASAWA ,  Yoshinori NISHIKI ,  Akihiro KATO ,  Setsuro OGATA ,  Awaludin ZAENAL ,  Akiyoshi MANABE ,  Koji MATSUOKA ,  Yasushi SATO

IPC分类号： C25B9/10 ,  C25B3/04 ,  C25B15/08

摘要： An organic hydride production apparatus includes: an electrolyte membrane having proton conductivity; a cathode that includes a cathode catalyst layer used to hydrogenate a hydrogenation target substance using protons to produce an organic hydride and also includes a cathode chamber; an anode that includes an anode catalyst layer used to oxidize water to produce protons and also includes an anode chamber; and a gas introduction unit that introduces, into the anolyte at a certain position, a certain gas used to remove at least one of the hydrogenation target substance and the organic hydride that have passed through the electrolyte membrane and been mixed into the anolyte.

公开(公告)号：US20190264340A1

公开(公告)日：2019-08-29

申请号：US16412957

申请日：2019-05-15

申请人： National University Corporation YOKOHAMA National University ,  DE NORA PERMELEC LTD

发明人： Shigenori MITSUSHIMA ,  Kensaku NAGASAWA ,  Yoshinori NISHIKI ,  Akihiro KATO ,  Setsuro OGATA ,  Awaludin ZAENAL ,  Akiyoshi MANABE ,  Koji MATSUOKA ,  Yasushi SATO

IPC分类号： C25B3/04 ,  C25B9/08 ,  C25B15/08

摘要： An organic hydride production apparatus includes: an electrolyte membrane having proton conductivity; a cathode that includes a cathode catalyst layer used to hydrogenate a hydrogenation target substance using protons to produce an organic hydride and also includes a cathode chamber; an anode that includes an anode catalyst layer used to oxidize water to produce protons and also includes an anode chamber; and a gas introduction unit that introduces, into the anolyte at a certain position, a certain gas used to remove at least one of the hydrogenation target substance and the organic hydride that have passed through the electrolyte membrane and been mixed into the anolyte.

公开(公告)号：US20240263327A1

公开(公告)日：2024-08-08

申请号：US18569324

申请日：2022-07-01

申请人： DE NORA PERMELEC LTD

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

IPC分类号： C25B11/061 ,  C25B1/04

CPC分类号： C25B11/061 ,  C25B1/04

摘要： 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.