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公开(公告)号：US07670712B2
公开(公告)日：2010-03-02
申请号：US10581210
申请日：2004-11-30
申请人： Kenichiro Ota , Nobuyuki Kamiya , Shigenori Mitsushima , Akimitsu Ishihara , Kazunari Doumen , Michikazu Hara
发明人： Kenichiro Ota , Nobuyuki Kamiya , Shigenori Mitsushima , Akimitsu Ishihara , Kazunari Doumen , Michikazu Hara
IPC分类号： H01M4/90
CPC分类号： H01M4/90 , B01J27/24 , H01M4/9016 , H01M8/086
摘要： An electrode catalyst that maintains catalytic activity under conditions of an electrode potential as high as 0.4 V or above and exhibits improved stability. The metal oxynitride electrode catalyst is composed of an oxynitride containing at least one transition metal element selected from the group consisting of La, Ta, Nb, Ti, and Zr, the metal oxynitride electrode catalyst being used at a potential of 0.4 V or higher relative to the reversible hydrogen electrode potential in an acidic electrolyte. The metal oxynitride electrode catalyst is useful as an electrode catalyst for electrochemical systems used in acidic electrolytes in the fields of water electrolysis, organic electrolysis, fuel cells, etc.
摘要翻译： 一种电极催化剂，其在电极电位高达0.4V或更高的条件下保持催化活性并表现出改进的稳定性。 金属氧氮化物电极催化剂由含有选自La，Ta，Nb，Ti和Zr中的至少一种过渡金属元素的氧氮化物组成，金属氧氮化物电极催化剂以0.4V或更高的电位使用 到酸性电解质中的可逆氢电极电位。 金属氮氧化物电极催化剂可用作在水电解，有机电解，燃料电池等领域中用于酸性电解质的电化学体系的电极催化剂。
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公开(公告)号：US20070128884A1
公开(公告)日：2007-06-07
申请号：US10581210
申请日：2004-11-30
申请人： Kenichiro Ota , Nobuyuki Kamiya , Shigenori Mitsushima , Akimitsu Ishihara , Kazunari Doumen , Michikazu Hara
发明人： Kenichiro Ota , Nobuyuki Kamiya , Shigenori Mitsushima , Akimitsu Ishihara , Kazunari Doumen , Michikazu Hara
IPC分类号： H01L21/31
CPC分类号： H01M4/90 , B01J27/24 , H01M4/9016 , H01M8/086
摘要： [Problems] Carbides and many other non-platinum-based compounds are activated and dissolved and cannot be stably present in an acidic electrolyte under conditions of an electrode potential as high as 0.4 V or above, and thus, the application range of these compounds as an electrode catalyst is limited to low electrode potentials. There has been need for development of an electrode catalyst that maintains catalytic activity under these conditions and exhibits improved stability. [Means for Solving Problems] To provide a metal oxynitride electrode catalyst composed of an oxynitride containing at least one transition metal element selected from the group consisting of La, Ta, Nb, Ti, and Zr, the metal oxynitride electrode catalyst being used at a potential of 0.4 V or higher relative to the reversible hydrogen electrode potential in an acidic electrolyte. The metal oxynitride electrode catalyst is useful as an electrode catalyst for electrochemical systems used in acidic electrolytes in the fields of water electrolysis, organic electrolysis, fuel cells, etc.
摘要翻译： [问题]硬质合金和许多其它非铂类化合物被活化和溶解，并且在电极电位高达0.4V或更高的条件下不能稳定地存在于酸性电解质中，因此这些化合物的应用范围为 电极催化剂限于低电极电位。 需要开发在这些条件下保持催化活性的电极催化剂，并表现出改进的稳定性。 解决问题的手段为了提供一种由含有选自La，Ta，Nb，Ti和Zr中的至少一种过渡金属元素的氧氮化物构成的金属氧氮化物电极催化剂，所述金属氧氮化物电极催化剂用于 相对于酸性电解质中的可逆氢电极电位，电位为0.4V以上。 金属氮氧化物电极催化剂可用作在水电解，有机电解，燃料电池等领域中用于酸性电解质的电化学体系的电极催化剂。
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3.发明授权公开(公告)号：US07919215B2
公开(公告)日：2011-04-05
申请号：US11660602
申请日：2005-08-18
IPC分类号： H01M4/02
CPC分类号： H01M4/9016 , H01M4/8605 , H01M8/1007
摘要： A corrosion-resistant electrode catalyst for oxygen reduction includes a main catalyst composed of at least one transition metal oxide selected from oxygen-deficient ZrO2, Ta2O5, Nb2O5, TiO2, V2O5, MoO3, and WO3 and a co-catalyst composed of gold. The electrode catalyst is used in contact with an acidic electrolyte at a potential at least 0.4 V higher than the reversible hydrogen electrode potential. The catalyst may be used, for example, in such a form that the transition metal oxide in the form of fine particles and gold in the form of fine particles, or fine particles including fine gold particles coated with the transition metal oxide are dispersed on a catalyst carrier which is an electron conductive powder. This electrode catalyst is suitable as an electrode catalyst for an electrochemical system using an acidic electrolyte in the fields of water electrolysis, inorganic/organic electrolysis, fuel cells, etc.
摘要翻译： 用于氧还原的耐腐蚀电极催化剂包括由至少一种选自缺氧的ZrO 2，Ta 2 O 5，Nb 2 O 5，TiO 2，V 2 O 5，MoO 3和WO 3的过渡金属氧化物和由金组成的助催化剂构成的主催化剂。 使用电极催化剂与酸性电解质接触，电位比可逆氢电极电位高至少0.4V的电位。 催化剂可以使用例如以细颗粒形式的细颗粒形式的金属过渡金属氧化物或包含过渡金属氧化物涂覆的金颗粒的细颗粒分散在 作为电子传导性粉末的催化剂载体。 该电极催化剂适用于在水电解，无机/有机电解，燃料电池等领域中使用酸性电解质的电化学系统的电极催化剂。
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公开(公告)号：US20070259267A1
公开(公告)日：2007-11-08
申请号：US11660602
申请日：2005-08-18
IPC分类号： H01M4/58
CPC分类号： H01M4/9016 , H01M4/8605 , H01M8/1007
摘要： A corrosion-resistant electrode catalyst for oxygen reduction includes a main catalyst composed of at least one transition metal oxide selected from oxygen-deficient ZrO2, Ta2O5, Nb2O5, TiO2, V2O5, MoO3, and WO3 and a co-catalyst composed of gold. The electrode catalyst is used in contact with an acidic electrolyte at a potential at least 0.4 V higher than the reversible hydrogen electrode potential. The catalyst may be used, for example, in such a form that the transition metal oxide in the form of fine particles and gold in the form of fine particles, or fine particles including fine gold particles coated with the transition metal oxide are dispersed on a catalyst carrier which is an electron conductive powder. This electrode catalyst is suitable as an electrode catalyst for an electrochemical system using an acidic electrolyte in the fields of water electrolysis, inorganic/organic electrolysis, fuel cells, etc.
摘要翻译： 用于氧还原的耐腐蚀电极催化剂包括由至少一种选自缺氧的ZrO 2，Ta 2 O 5的过渡金属氧化物组成的主催化剂 Nb 2 O 5，TiO 2，V 2 O 5，N 2 O 5， N 3，MoO 3 3和WO 3以及由金组成的助催化剂。 使用电极催化剂与酸性电解质接触，电位比可逆氢电极电位高至少0.4V的电位。 催化剂可以例如以细颗粒形式的细小颗粒形式的金属过渡金属氧化物或包含过渡金属氧化物涂覆的细金颗粒的细颗粒分散在 作为电子传导性粉末的催化剂载体。 该电极催化剂适用于在水电解，无机/有机电解，燃料电池等领域中使用酸性电解质的电化学系统的电极催化剂。
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公开(公告)号：US09630169B2
公开(公告)日：2017-04-25
申请号：US14342489
申请日：2012-08-31
申请人： Kazuhito Hato , Kenichi Tokuhiro , Takahiro Suzuki , Takaiki Nomura , Kenichiro Ota , Akimitsu Ishihara
发明人： Kazuhito Hato , Kenichi Tokuhiro , Takahiro Suzuki , Takaiki Nomura , Kenichiro Ota , Akimitsu Ishihara
IPC分类号： B01J27/24 , B01J19/12 , B01J37/34 , B01J35/00 , C01B3/04 , C25B1/00 , C25B1/04 , C25B9/00 , C25B9/06
CPC分类号： B01J27/24 , B01J19/127 , B01J35/004 , B01J37/347 , C01B3/042 , C25B1/003 , C25B1/04 , C25B9/00 , C25B9/06 , Y02E60/364 , Y02E60/366
摘要： A semiconductor material of the present invention is a semiconductor material including an oxynitride containing at least one element selected from the Group 4 elements and Group 5 elements. In the oxynitride, part of at least one selected from oxygen and nitrogen is substituted with carbon. Nb is preferable as the Group 5 element.
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6.发明申请SEMICONDUCTOR MATERIAL, OPTICAL HYDROGEN GENERATING DEVICE USING SAME, AND METHOD OF PRODUCING HYDROGEN 有权半导体材料，使用其的光学氢生成装置和生产氢的方法公开(公告)号：US20140224665A1
公开(公告)日：2014-08-14
申请号：US14342489
申请日：2012-08-31
申请人： Kazuhito Hato , Kenichi Tokuhiro , Takahiro Suzuki , Takaiki Nomura , Kenichiro Ota , Akimitsu Ishihara
发明人： Kazuhito Hato , Kenichi Tokuhiro , Takahiro Suzuki , Takaiki Nomura , Kenichiro Ota , Akimitsu Ishihara
CPC分类号： B01J27/24 , B01J19/127 , B01J35/004 , B01J37/347 , C01B3/042 , C25B1/003 , C25B1/04 , C25B9/00 , C25B9/06 , Y02E60/364 , Y02E60/366
摘要： A semiconductor material of the present invention is a semiconductor material including an oxynitride containing at least one element selected from the Group 4 elements and Group 5 elements. In the oxynitride, part of at least one selected from oxygen and nitrogen is substituted with carbon. Nb is preferable as the Group 5 element.
摘要翻译： 本发明的半导体材料是包含含有选自第4族元素和第5族元素中的至少一种元素的氮氧化物的半导体材料。 在氧氮化物中，选自氧和氮中的至少一种的一部分被碳取代。 Nb优选为第5族元素。
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7.发明授权Process for producing fuel cell electrode catalyst, process for producing transition metal oxycarbonitride, fuel cell electrode catalyst and uses thereof 有权燃料电池用电极催化剂的制造方法，过渡金属碳氮氧化物的制造方法，燃料电池用电极催化剂及其用途公开(公告)号：US09136541B2
公开(公告)日：2015-09-15
申请号：US13577843
申请日：2011-02-09
申请人： Kunchan Lee , Ryoko Konta , Masaki Horikita , Chunfu Yu , Yasuaki Wakizaka , Kenichiro Ota , Ryuji Monden , Kazunori Ichioka , Takashi Sato , Takuya Imai
发明人： Kunchan Lee , Ryoko Konta , Masaki Horikita , Chunfu Yu , Yasuaki Wakizaka , Kenichiro Ota , Ryuji Monden , Kazunori Ichioka , Takashi Sato , Takuya Imai
IPC分类号： H01M4/04 , H01M4/90 , B01J23/74 , B01J23/75 , B01J37/00 , B01J37/08 , B01J37/18 , C01B21/082 , H01M4/88 , H01M8/10
CPC分类号： H01M4/9016 , C01B21/0828 , C01P2002/72 , C01P2006/40 , H01M4/8896 , H01M8/1004 , Y02E60/521
摘要： Provided is a process for producing a fuel cell electrode catalyst having high catalytic activity which uses a transition metal, e.g., titanium, which process comprises thermal treatment at relatively low temperature, i.e., not including thermal treatment at high temperature (calcining) step. The process for producing a fuel cell electrode catalyst comprises a step (1) of mixing at least a transition metal-containing compound, a nitrogen-containing organic compound and a solvent to provide a catalyst precursor solution; a step (2) of removing the solvent from the catalyst precursor solution; and a step (3) of thermally treating a solid residue obtained in the step (2) at a temperature of 500 to 1100° C. to provide an electrode catalyst; wherein the transition metal-containing compound is partly or wholly a compound comprising at least one transition metal element (M1) selected from the group 4 and 5 elements of the periodic table as a transition metal element.
摘要翻译： 提供了一种使用过渡金属（例如钛）具有高催化活性的燃料电池电极催化剂的方法，该方法包括在较低温度下的热处理，即不包括在高温（煅烧）步骤的热处理。 制造燃料电池电极催化剂的方法包括将至少含过渡金属的化合物，含氮有机化合物和溶剂混合以提供催化剂前体溶液的步骤（1） 从催化剂前体溶液中除去溶剂的步骤（2）; 以及在500〜1100℃的温度下热处理步骤（2）中得到的固体残渣以提供电极催化剂的步骤（3）; 其中所述含过渡金属的化合物部分或全部为包含至少一种选自周期表第4族和第5族元素的过渡金属元素（M1）作为过渡金属元素的化合物。
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公开(公告)号：US20120058415A1
公开(公告)日：2012-03-08
申请号：US13319617
申请日：2010-05-11
CPC分类号： H01M4/9016 , B01J21/06 , B01J21/063 , B01J27/135 , B01J27/20 , B01J27/24 , B01J38/08 , H01M4/86 , H01M4/88 , Y02E60/50
摘要： [Object]The invention provides catalysts that are not corroded in acidic electrolytes or at high potential and have excellent durability and high oxygen reducing ability.[Solution]A catalyst of the invention includes a metal oxycarbonitride that contains titanium and at least one metal (hereinafter, also referred to as “metal M” or simply “M”) selected from silver, calcium, strontium, yttrium, ruthenium, lanthanum, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium.
摘要翻译： 本发明提供在酸性电解质或高电位下不被腐蚀并且具有优异的耐久性和高的氧还原能力的催化剂。 [溶液]本发明的催化剂包括含有钛和至少一种选自银，钙，锶，钇，钌，镧的金属（以下也称为“金属M”或简称“M”）的金属碳氮氧化物 镨，钕，ium，钐，铕，钆，铽，镝，钬，铒，ium，镱和镥。
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公开(公告)号：US20120070763A1
公开(公告)日：2012-03-22
申请号：US13319637
申请日：2010-05-11
CPC分类号： H01M4/9016 , B01J27/22 , B01J27/24 , B01J37/08
摘要： The invention provides catalysts that are not corroded in acidic electrolytes or at high potential and have excellent durability and high oxygen reducing ability, and processes for producing the catalysts and uses of the catalysts. The catalyst of the invention includes a metal oxycarbonitride that contains at least one metal selected from tantalum, vanadium, molybdenum and zirconium (hereinafter, also referred to as “metal M” or simply “M”) and does not contain any of platinum, titanium and niobium.
摘要翻译： 本发明提供在酸性电解质或高电位下不被腐蚀并且具有优异的耐久性和高氧还原能力的催化剂，以及催化剂的制备方法和催化剂的用途。 本发明的催化剂包括含有至少一种选自钽，钒，钼和锆的金属（以下也称为“金属M”或简称为“M”）的金属碳氮氧化物，并且不含任何铂，钛 和铌。
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公开(公告)号：US09190670B2
公开(公告)日：2015-11-17
申请号：US13266562
申请日：2010-04-27
CPC分类号： H01M4/9016 , B01J27/24 , H01M2008/1095 , Y02E60/50
摘要： The invention provides catalysts that are not corroded in acidic electrolytes or at high potential and have excellent durability and high oxygen reducing ability. The catalyst includes a metal element M, carbon, nitrogen and oxygen, wherein the catalyst shows peaks at 1340 cm−1 to 1365 cm−1 and at 1580 cm−1 to 1610 cm−1 as analyzed by Raman spectroscopy and the metal element M is one selected from titanium, iron, niobium, zirconium and tantalum. The catalysts of the invention are stable and are not corroded in acidic electrolytes or at high potential, have high oxygen reducing ability and are inexpensive compared to platinum. Fuel cells having the catalysts are therefore relatively inexpensive and have high performance.
摘要翻译： 本发明提供了在酸性电解质或高电位下不被腐蚀并具有优异的耐久性和高的氧还原能力的催化剂。 催化剂包括金属元素M，碳，氮和氧，其中催化剂在1340cm -1至1365cm -1和1580cm -1至1610cm -1处显示出峰，通过拉曼光谱和金属元素M 是选自钛，铁，铌，锆和钽的一种。 本发明的催化剂是稳定的，并且在酸性电解质或高电位下不被腐蚀，具有高的氧还原能力，并且与铂相比便宜。 因此，具有催化剂的燃料电池相对便宜并具有高性能。
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