公开(公告)号：US11866834B2

公开(公告)日：2024-01-09

申请号：US16975868

申请日：2019-03-04

申请人： DE NORA PERMELEC LTD ,  KAWASAKI JUKOGYO KABUSHIKI KAISHA

发明人： Shigenori Mitsushima ,  Yoshiyuki Kuroda ,  Ikuo Nagashima ,  Tatsuya Taniguchi ,  Yoshinori Nishiki ,  Akihiro Kato ,  Awaludin Zaenal ,  Fumiya Tsujii ,  Takaaki Nakai

IPC分类号： C25B11/077 ,  C23C18/12

CPC分类号： C25B11/0771 ,  C23C18/1216 ,  C25B11/0773

摘要： The present invention provides an electrode for electrolysis in which electrolysis performance is hard to deteriorate and excellent catalytic activity is kept stable over a long period of time even when electric power in which there is a large fluctuation in output, such as renewable energy, is used as a power source. The electrode for electrolysis is an electrode 10 for electrolysis provided with an electrically conductive substrate 2 at least the surface of which contains nickel or a nickel-based alloy, an intermediate layer 4 formed on the surface of the electrically conductive substrate 2 and containing a lithium-containing nickel oxide represented by composition formula LixNi2-xO2 (0.02≤x≤0.5), and a catalyst layer 6 of a nickel cobalt spinel oxide, an iridium oxide, or the like, the catalyst layer 6 formed on the surface of the intermediate layer 4.

公开(公告)号：US11692276B2

公开(公告)日：2023-07-04

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 ,  C25B15/029 ,  C25B11/077 ,  C25B15/08 ,  C25B11/061 ,  C25B11/085

CPC分类号： C25B11/052 ,  C25B1/04 ,  C25B11/061 ,  C25B11/077 ,  C25B11/085 ,  C25B15/029 ,  C25B15/08

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：US11965256B2

公开(公告)日：2024-04-23

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 ,  C25B1/04 ,  C25B11/061 ,  C25B11/077 ,  C25B15/021

CPC分类号： C25B11/052 ,  C25B1/04 ,  C25B11/061 ,  C25B11/0771 ,  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：US11519082B2

公开(公告)日：2022-12-06

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： C25B3/25 ,  C25B15/08 ,  C25B9/00 ,  C25B9/19 ,  C25B9/23

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：US10889903B2

公开(公告)日：2021-01-12

申请号：US15525419

申请日：2015-11-09

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

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.