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    Fuel cell nanocatalyst
    1.
    发明申请
    Fuel cell nanocatalyst 有权
    燃料电池纳米催化剂

    公开(公告)号：US20070082256A1

    公开(公告)日：2007-04-12

    申请号：US11248561

    申请日：2005-10-12

    申请人： Mark Debe ,  Susan Hendricks ,  George Vernstrom ,  Alison Schmoeckel ,  Radoslav Atanasoski ,  Clayton Hamilton

    发明人： Mark Debe ,  Susan Hendricks ,  George Vernstrom ,  Alison Schmoeckel ,  Radoslav Atanasoski ,  Clayton Hamilton

    IPC分类号： H01M4/92 ,  H01M4/88 ,  B01J23/42

    CPC分类号： H01M4/92 ,  C08J5/2237 ,  C08J2327/18 ,  H01M4/926 ,  H01M8/1004 ,  H01M8/1018 ,  H01M8/1023 ,  H01M8/1039 ,  H01M2300/0082

    摘要： A fuel cell cathode catalyst is provided comprising nanostructured elements comprising microstructured support whiskers bearing nanoscopic catalyst particles; wherein the catalyst comprises platinum and manganese and at least one other metal selected from the group consisting of Group VIb metals, Group VIIb metals and Group VIIIb metals other than platinum and manganese; wherein the volume ratio of platinum to the sum of all other metals in the catalyst is between about 1 and about 4, more typically between 1 and 4, more typically between about 2.5 and about 3.5, more typically between 2.5 and 3.5, and most typically about 3, and wherein the Mn content is equal to or greater than about 5 micrograms/cm2 areal density. Typically, the volume ratio of manganese to the at least one other metal is between 10:90 and 90:10. In one embodiment, the volume ratio of platinum to manganese to the at least one other metal is about 6:1:1. Typically, the at least one other metal is Ni or Co. In addition, the present invention provides a fuel cell membrane electrode assembly (MEA) comprising the fuel cell cathode catalyst according to the present invention. In addition, the present invention also provides methods of making the cathode catalyst of the present invention.

    摘要翻译： 提供了包括纳米结构元件的燃料电池阴极催化剂，其包含具有纳米级催化剂颗粒的微结构化支撑晶须; 其中所述催化剂包含铂和锰以及选自除了铂和锰之外的第Ⅵb族金属，Ⅶb族金属和Ⅷb族金属的至少一种其它金属; 其中铂与催化剂中所有其它金属的总和的体积比为约1至约4，更典型地为1至4，更典型地为约2.5至约3.5，更典型地为2.5至3.5，最典型地为 约3，并且其中Mn含量等于或大于约5微克/厘米2密度。 通常，锰与至少一种其它金属的体积比在10:90至90:10之间。 在一个实施方案中，铂与锰与至少一种其它金属的体积比为约6:1:1。 通常，至少一种其它金属是Ni或Co。另外，本发明还提供一种包含根据本发明的燃料电池阴极催化剂的燃料电池膜电极组件（MEA）。 另外，本发明还提供了制造本发明的阴极催化剂的方法。

    Ternary nanocatalyst and method of making
    4.
    发明申请
    Ternary nanocatalyst and method of making 审中-公开
    三元纳米催化剂及其制备方法

    公开(公告)号：US20070082814A1

    公开(公告)日：2007-04-12

    申请号：US11248441

    申请日：2005-10-12

    申请人： Mark Debe ,  Susan Hendricks ,  George Vernstrom ,  Amy Hester

    发明人： Mark Debe ,  Susan Hendricks ,  George Vernstrom ,  Amy Hester

    IPC分类号： B01J23/32

    CPC分类号： B01J37/347 ,  B01J23/8986 ,  H01M4/881 ,  H01M4/90 ,  H01M4/9083 ,  H01M4/92 ,  H01M4/926 ,  H01M2008/1095

    摘要： A method is provided for making a supported catalyst comprising nanostructured elements which comprise microstructured support whiskers bearing nanoscopic catalyst particles, where the method comprises the step of depositing a catalyst material comprising at least three metallic elements on microstructured support whiskers from a single target comprising at least three metallic elements. Typically, at least one of said metallic elements is Pt. In addition, one or more of said metallic elements may be Mn, Ni or Co. Other metallic elements or other transition metal elements may be included. In addition, the present invention provides a supported catalyst comprising nanostructured elements which comprise microstructured support whiskers bearing nanoscopic catalyst particles made according to the method of the present invention. Further, the present invention provides fuel cell membrane electrode assembly comprising the supported catalyst according to the present invention.

    摘要翻译： 提供了一种用于制备包含纳米结构元素的负载型催化剂的方法，其包含具有纳米级催化剂颗粒的微结构化支撑晶须，其中该方法包括将至少三种金属元素的催化剂材料沉积在至少包含至少一个单一靶的微结构化支撑晶须上的步骤 三个金属元素。 通常，所述金属元素中的至少一个是Pt。 此外，一种或多种所述金属元素可以是Mn，Ni或Co。可以包括其它金属元素或其它过渡金属元素。 此外，本发明提供一种包含纳米结构元素的载体催化剂，其包含根据本发明方法制备的纳米级催化剂颗粒的微结构支撑晶须。 此外，本发明提供了包含根据本发明的负载型催化剂的燃料电池膜电极组件。

    Fuel cell cathode catalyst
    5.
    发明申请
    Fuel cell cathode catalyst 有权
    燃料电池阴极催化剂

    公开(公告)号：US20050069755A1

    公开(公告)日：2005-03-31

    申请号：US10674594

    申请日：2003-09-29

    申请人： George Vernstrom ,  Radoslav Atanasoski ,  Mark Debe ,  Gregory Haugen ,  Krzysztof Lewinski ,  Andrew Steinbach

    发明人： George Vernstrom ,  Radoslav Atanasoski ,  Mark Debe ,  Gregory Haugen ,  Krzysztof Lewinski ,  Andrew Steinbach

    IPC分类号： B01J23/652 ,  B01J23/656 ,  B01J23/89 ,  B01J35/02 ,  B01J37/34 ,  H01M4/86 ,  H01M4/88 ,  H01M4/92 ,  H01M4/90

    CPC分类号： H01M4/8605 ,  B01J35/026 ,  H01M4/8803 ,  H01M4/8871 ,  H01M4/921

    摘要： A fuel cell cathode catalyst is provided which comprises nanostructured elements comprising microstructured support whiskers bearing nanoscopic catalyst particles. The nanoscopic catalyst particles are made by the alternating application of first and second layers, the first layer comprising platinum and the second layer being an alloy or intimate mixture of iron and a second metal selected from the group consisting of Group VIb metals, Group VIIb metals and Group VIIIb metals other than platinum and iron, where the atomic ratio of iron to the second metal in the second layer is between 0 and 10, where the planar equivalent thickness ratio of the first layer to the second layer is between 0.3 and 5, and wherein the average bilayer planar equivalent thickness of the first and second layers is less than 100 Å. A method of making such nanoscopic catalyst particles comprising the alternate steps of vacuum deposition of platinum and vacuum deposition of an alloy or intimate mixture of iron and a second metal is also provided.

    摘要翻译： 提供了一种燃料电池阴极催化剂，其包括纳米结构元件，其包含具有纳米级催化剂颗粒的微结构化支撑晶须。 纳米级催化剂颗粒通过交替施加第一和第二层制成，第一层包含铂，第二层是铁和选自第VIb族金属，第VIIb族金属的第二金属的合金或紧密混合物 和除了铂和铁之外的第VIIIb族金属，其中第二层中铁与第二金属的原子比在0和10之间，其中第一层与第二层的平面当量厚度比在0.3和5之间， 并且其中所述第一和第二层的平均双层平面等效厚度小于100。 还提供了制造这种纳米级催化剂颗粒的方法，其包括铂的真空沉积的交替步骤和真空沉积合金或铁和第二金属的紧密混合物。