公开(公告)号：EP4455095A1

公开(公告)日：2024-10-30

申请号：EP22910512.7

申请日：2022-10-03

申请人： University of The Ryukyus ,  SHINSHU UNIVERSITY

发明人： TAKIMOTO, Daisuke ,  SUGIMOTO, Wataru

IPC分类号： C01G55/00 ,  B82Y30/00 ,  B82Y40/00

摘要： To provide a layered platinate, a layered platinic acid, a platinic acid nanosheet, a platinum nanosheet, and a manufacturing method of the platinum nanosheet that are used for fabricating a platinum nanosheet usable as an electrocatalyst for fuel cells, a catalyst for purifying exhaust gas, a catalyst for synthesizing chemical products, and the like.
The above-described problem is solved by a layered platinate comprising M x Pt y O z ·nH 2 O (where M is a monovalent metal), the M x Pt y O z ·nH 2 O being layered (the M being potassium and diffraction peaks are at 2Θ diffraction angles of 13° and 26°); a layered platinic acid comprising H x Pt y O z ·nH 2 O, the H x Pt y O z ·nH 2 O being layered; a platinic acid nanosheet having a thickness of 1 nm or less; and a platinum nanosheet having a thickness of 0.6 nm or less.

公开(公告)号：EP2776607B1

公开(公告)日：2017-08-23

申请号：EP12805786.6

申请日：2012-11-01

申请人： Shinshu University ,  De Nora Permelec Ltd

发明人： SUGIMOTO, Wataru ,  ZHANG, Junfeng

IPC分类号： C25B11/03 ,  C25B11/04 ,  C25C7/02 ,  C25D17/10

CPC分类号： F27D7/06 ,  C02F2001/46147 ,  C23C16/271 ,  C23C16/56 ,  C23C18/08 ,  C25B11/035 ,  C25B11/0447 ,  C25B11/0484 ,  C25C7/02 ,  C25D17/10 ,  F27D2007/063 ,  G01N27/30 ,  G01N27/308 ,  H01M4/8605 ,  H01M4/8803

公开(公告)号：EP4439740A1

公开(公告)日：2024-10-02

申请号：EP22898216.1

申请日：2022-09-22

申请人： SHINSHU UNIVERSITY

发明人： SUGIMOTO, Wataru ,  HUANG, Ting-Wei

IPC分类号： H01M4/90 ,  H01M4/92 ,  H01M8/10

CPC分类号： Y02E60/50 ,  H01M4/90 ,  H01M8/10 ,  H01M4/92

摘要： To provide an electrode catalyst exhibiting high performance as a reversal-resistant anode catalyst in fuel cells.
The above-described problem is solved by an electrode catalyst constituted by a composite catalyst obtained by mixing an iridium oxide (IrO2) nanosheet with a Pt/C catalyst as a promoter. A weight ratio (percentage) of the IrO2 nanosheet to a sum of the Pt/C and the IrO2 nanosheet is preferably within a range of 1% or more and 26% or less, and a Pt:Ir (atomic ratio) constituting the composite catalyst is preferably within a range of 1.5:1 to 50:1.

公开(公告)号：EP3406336A1

公开(公告)日：2018-11-28

申请号：EP16886377.7

申请日：2016-06-08

申请人： Shinshu University

发明人： SUGIMOTO, Wataru ,  MOCHIZUKI, Dai ,  AYATO, Yusuke ,  OHNISHI, Tomohiro ,  TAKIMOTO, Daisuke

IPC分类号： B01J23/46 ,  B01J35/02 ,  H01M4/86 ,  H01M4/92 ,  H01M8/10

CPC分类号： H01M4/925 ,  B01J23/46 ,  B01J35/02 ,  H01M4/86 ,  H01M4/92 ,  H01M8/10 ,  H01M2008/1095

摘要： To provide a novel core-shell structure type nanosheet and, when used as an electrocatalyst for a fuel cell, a core-shell structure type nanosheet capable of improving catalytic activity and suppressing a deterioration in catalytic performance. The above-described problem is solved by a core-shell structure type nanosheet (10) comprising a metal nanosheet (1) and a platinum atomic layer (2) provided on a surface of the metal nanosheet (1). In this core-shell structure type nanosheet (10), the platinum atomic layer (2) is preferably provided on the entire surface of the metal nanosheet (1). Further, the core-shell structure type nanosheet (10) can be used as a cathode catalyst or an anode catalyst for a fuel cell or the like. The metal nanosheet (1) is preferably within a range of 0.2 to 0.3 nm in thickness, and within a range of several tens of nm to several µm, inclusive, in length in an in-plane direction.

公开(公告)号：EP2776607A1

公开(公告)日：2014-09-17

申请号：EP12805786.6

申请日：2012-11-01

申请人： Shinshu University ,  Permelec Electrode Ltd.

发明人： SUGIMOTO, Wataru ,  ZHANG, Junfeng

IPC分类号： C25B11/03 ,  C25B11/04 ,  C25C7/02 ,  C25D17/10

CPC分类号： F27D7/06 ,  C02F2001/46147 ,  C23C16/271 ,  C23C16/56 ,  C23C18/08 ,  C25B11/035 ,  C25B11/0447 ,  C25B11/0484 ,  C25C7/02 ,  C25D17/10 ,  F27D2007/063 ,  G01N27/30 ,  G01N27/308 ,  H01M4/8605 ,  H01M4/8803

摘要： The present invention provides an electrode for electrochemistry with a high quality, in which the surface area of the polycrystalline conductive diamond layer is increased and the crystal plane is controlled. In addition, when the catalyst layer of electrode substance is coated on the polycrystalline conductive diamond layer, adherence between the two layers is increased to provide an electrode for electrochemistry with a high durability. The polycrystalline conductive diamond layer is held under an atmosphere of carbon dioxide at a temperature 400 degrees Celsius or higher but 1000 degrees Celsius or lower to make the polycrystalline conductive diamond layer porous and make a specific crystal plane to remain and be formed.

摘要翻译： 本发明提供了一种高质量的电化学电极，其中多晶导电金刚石层的表面积增加并且晶面被控制。 此外，当电极物质的催化剂层涂覆在多晶导电金刚石层上时，增加两层之间的粘附性以提供具有高耐久性的用于电化学的电极。 多晶导电金刚石层在二氧化碳气氛下在400摄氏度或更高但是1000摄氏度或更低的温度下保持，以使多晶导电金刚石层多孔，并形成特定的晶面保留并形成。