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1. 发明申请

US20030044655A1 Noble metal-base metal alloy catalyst, evaluation of such catalyst, and method of producing such catalyst 失效
标题翻译：贵金属基金属合金催化剂，这种催化剂的评价，以及这种催化剂的制造方法
公开(公告)号：US20030044655A1
公开(公告)日：2003-03-06
申请号：US10206036
申请日：2002-07-29
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Hisao Kato , Takahiko Asaoka , Kazutaka Hiroshima
IPC分类号： H01M004/96 , H01M008/00 , H01M004/90 , H01M004/88 , H01M004/92
CPC分类号： H01M4/881 , H01M4/8605 , H01M4/92 , H01M4/926 , H01M8/1004 , Y02P70/56
摘要： The technique of the present invention attains simple and accurate evaluation of the performance of a fuel cell and enables produce of a high-performance electrode catalyst and a high-performance fuel cell. The procedure makes platinum, a noble metal, and iron, a base metal, carried on carbon having a large specific surface area, and heats up the carbon with platinum and iron to a specific temperature to reduce iron. A resulting platinum-iron alloy electrode catalyst exerts excellent catalytic functions. A fuel cell using this electrode catalyst has a high IR compensation voltage. The quantity of carbon monoxide adsorbed by this novel electrode catalyst is not less than 14 Ncc per one gram of platinum. The atomic number ratio of iron (Fe) to platinum (Pt) in the catalyst is not lower than 0.14 by EDX analysis, and the ratio of the binding number of Pt atom with Fe atom to the total binding number relating to Pt atom is not lower than 0.10 by EXAFS analysis. Each electrode catalyst produced is evaluated by measurement of these data. The fuel cell including the electrode catalyst having the favorable result of evaluation ensures the desired performances.
摘要翻译：本发明的技术简单而准确地评价燃料电池的性能，能够制造高性能的电极催化剂和高性能的燃料电池。该方法使铂，贵金属和铁，贱金属承载在比表面积大的碳上，并用铂和铁将碳加热至特定温度以还原铁。得到的铂 - 铁合金电极催化剂具有优异的催化功能。使用该电极催化剂的燃料电池具有高IR补偿电压。这种新型电极催化剂吸附的一氧化碳的量不低于每克铂14Ncc。通过EDX分析，催化剂中铁（Fe）与铂（Pt）的原子数比不低于0.14，Pt原子与Fe原子的结合数与Pt原子的总结合数的比例不是通过EXAFS分析低于0.10。通过测量这些数据来评估所产生的每个电极催化剂。包括具有良好评价结果的电极催化剂的燃料电池确保了期望的性能。

2. 发明申请

US20030054227A1 Electrode catalyst for fuel cell and process for producing the same 有权
标题翻译：燃料电池用电极催化剂及其制造方法
公开(公告)号：US20030054227A1
公开(公告)日：2003-03-20
申请号：US10228338
申请日：2002-08-27
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Kazutaka Hiroshima , Takahiko Asaoka , Yutaka Ohya , Tatsuo Noritake , Hisao Kato , Tetsuo Nagami
IPC分类号： H01M004/88 , H01M004/92
CPC分类号： H01M4/921 , H01M4/926
摘要： An electrode catalyst for a fuel cell includes a conductive support, and catalytic particles loaded on the conductive support. The catalytic particles include platinum and a base metal being on the lower end of the electrochemical series with respect to platinum. The number of the atoms of the base metal, forming metallic oxides without alloying with the platinum, is less than 5 atomic % of the number of the atoms of the platinum on a surface of the catalytic particles. The electrode catalyst is produced by loading the platinum and base metal on the conductive support, alloying the platinum and base metal thereon by a heat treatment, thereby making the catalytic particles, and removing metallic oxides from a surface of the catalytic particles. The electrode catalyst is less expensive comparatively, exhibits high catalytic activities, and hardly lowers the battery performance of fuel cells.
摘要翻译：用于燃料电池的电极催化剂包括导电载体和负载在导电载体上的催化颗粒。催化剂颗粒包括相对于铂的铂和贱金属在电化学系列的下端。形成不与铂合金化的金属氧化物的贱金属的原子数小于催化剂颗粒表面铂原子数的5原子％。通过将铂和贱金属负载在导电性载体上，通过热处理将铂和贱金属合金化，由此制造催化剂颗粒，并从催化剂颗粒的表面去除金属氧化物，制备电极催化剂。电极催化剂比较便宜，催化活性高，几乎不降低燃料电池的电池性能。

3. 发明申请

US20030096156A1 Electrode catalyzer for fuel cell, fuel cell air electrode employing electrode catalyzer, and catalytic activity evaluation method for electrode catalyzer 审中-公开
标题翻译：用于燃料电池的电极催化剂，使用电极催化剂的燃料电池空气电极和用于电极催化剂的催化活性评估方法
公开(公告)号：US20030096156A1
公开(公告)日：2003-05-22
申请号：US10290229
申请日：2002-11-08
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Takahiko Asaoka , Kazutaka Hiroshima , Tatsuo Noritake , Yutaka Ohya , Hisao Kato , Tetsuo Nagami
IPC分类号： H01M004/92 , H01M004/96
CPC分类号： H01M8/1004 , H01M4/8605 , H01M4/92 , H01M4/921
摘要： In a powder-form electrode catalyzer for a fuel cell which comprises catalyst particles that contain platinum, and an electrically conductive support supporting the catalyst particles, the ratio between a mean value D111 of crystallite diameters of catalyst particles in a direction perpendicular to a (111) crystal face and a mean value D100 of crystallite diameters of the catalyst particles in a direction perpendicular to a (100) crystal face is D100/D111
摘要翻译：在包含含有铂的催化剂颗粒的燃料电池的粉末状电极催化剂和支撑催化剂颗粒的导电载体中，催化剂颗粒在与（111）相垂直的方向上的微晶直径的平均值D111之间的比例）晶面，并且在垂直于（100）晶面的方向上的催化剂颗粒的微晶直径的平均值D100为D100 / D111 <1，催化剂颗粒的平均微晶直径为至多5nm。由于作为催化剂的大的表面积和表面上具有（100）晶面的催化剂颗粒的大部分，电极催化剂具有高氧还原活性。

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