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    • 10. 发明申请
    • FUEL CELL NANOCATALYST WITH VOLTAGE REVERSAL TOLERANCE
    • 燃料电池与电压反向容差
    • US20100047668A1
    • 2010-02-25
    • US12546775
    • 2009-08-25
    • Andrew J. L. STEINBACHGeorge D. VernstromMark K. DebeRadoslav Atanasoski
    • Andrew J. L. STEINBACHGeorge D. VernstromMark K. DebeRadoslav Atanasoski
    • H01M4/00
    • H01M4/8657H01M4/92H01M2008/1095
    • In some embodiments, the present disclosure provides a fuel cell catalyst having a catalyst surface bearing a non-occluding layer of iridium. In some embodiments, the present disclosure provides a fuel cell catalyst comprising a catalyst surface bearing a sub-monolayer of iridium. In some embodiments, the present disclosure provides a fuel cell catalyst comprising a catalyst surface bearing a layer of iridium having a planar equivalent thickness of between 1 and 100 Angstroms. In some embodiments, the fuel cell catalyst comprises nanostructured elements comprising microstructured support whiskers bearing a thin film of nanoscopic catalyst particles. The layer of iridium typically has a planar equivalent thickness of between 1 and 100 Angstroms and more typically between 5 and 60 Angstroms. The fuel cell catalyst typically comprises no electrically conductive carbon material and typically comprises at least a portion of the iridium in the zero oxidation state.
    • 在一些实施方案中,本公开提供了具有带有非阻挡层铱的催化剂表面的燃料电池催化剂。 在一些实施方案中,本公开提供了一种燃料电池催化剂,其包含具有铱的亚单层的催化剂表面。 在一些实施方案中,本公开内容提供了一种燃料电池催化剂,其包含具有平面当量厚度为1至100埃的铱层的催化剂表面。 在一些实施方案中,燃料电池催化剂包含纳米结构元素,其包含具有纳米级催化剂颗粒薄膜的微结构化支撑晶须。 铱层通常具有1至100埃的平面当量厚度,更典型地在5至60埃之间。 燃料电池催化剂通常不包括导电碳材料,并且通常包含处于零氧化状态的铱的至少一部分。