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    • 9. 发明授权
    • Electrode catalyst containing two or more metal components, method of preparing the same, and fuel cell including the electrode catalyst
    • 含有两种以上金属成分的电极催化剂,其制备方法以及包含该电极催化剂的燃料电池
    • US07892700B2
    • 2011-02-22
    • US11704603
    • 2007-02-09
    • Sang-mock Lee
    • Sang-mock Lee
    • H01M8/10B01J21/18
    • H01M4/921H01M4/8652H01M4/8663H01M4/926H01M8/1011H01M2008/1095Y02E60/523Y02P70/56
    • An electrode catalyst including two or more metal components used in an anode and/or a cathode of a proton exchange membrane fuel cell (PEMFC) or a direct methanol fuel cell (DMFC), a method of preparing the same, and a fuel cell including the electrode catalyst. The electrode catalyst includes an active Pt-based metal and an inactive La-based metal. By including the inactive metal component in the electrode catalyst, in addition to the active Pt-based metal component, higher catalyst activity can be obtained, and the amount of the expensive Pt-based metal can be decreased so that the fuel cell can be produced at relatively low costs. In addition, the active Pt-based metal and the inactive La-based metal are uniformly distributed so that agglomeration of the active Pt-based metal can be blocked (or prevented) and thus the catalyst activity can be maintained constant for a relatively long period of time.
    • 包括用于质子交换膜燃料电池(PEMFC)或直接甲醇燃料电池(DMFC)的阳极和/或阴极中的两种或更多种金属组分的电极催化剂,其制备方法和包括 电极催化剂。 电极催化剂包括活性Pt基金属和无活性La基金属。 通过将非活性金属成分包含在电极催化剂中,除了活性Pt系金属成分之外,还可以获得更高的催化剂活性,并且可以降低昂贵的Pt系金属的量,从而能够制造燃料电池 成本相对较低。 另外,活性Pt系金属和无活性La系金属均匀分布,能够阻止(或阻止)活性Pt系金属的附聚,因此催化剂活性能够保持恒定较长时间 的时间。