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    • 9. 发明申请
    • CATALYTICALLY ACTIVE COMPOSITION, MEMBRANE-ELECTRODE UNIT COMPRISING THE SAME, AND CATALYST COMPRISING/MADE OF THE SAME
    • 催化活性组合物,用该组合物和催化剂带ON / OFF的组合物的膜电极单元
    • WO2007031346A3
    • 2007-08-30
    • PCT/EP2006009068
    • 2006-09-18
    • UNIV BREMENWILHELM MICHAELAJESKE MICHAELHESSE THOMASSOLTMANN CHRISTIANGRATHWOHL GEORGKOCH DIETMAR
    • WILHELM MICHAELAJESKE MICHAELHESSE THOMASSOLTMANN CHRISTIANGRATHWOHL GEORGKOCH DIETMAR
    • C08L83/00B01J23/00C08G77/46H01M8/00
    • B01J31/124H01M4/9008H01M8/1004H01M2008/1095
    • The invention relates to a catalytically active composition comprising at least one polysiloxane, the catalytic effect being created by integrating metallic centers such as platinum, nickel, etc. Also disclosed are a membrane-electrode unit (MEA) comprising said composition as well as a catalyst containing/made of the same. Based on its properties, the inventive catalytically active composition can preferably be used as an electrocatalyst in electrochemical applications, especially in a polymer electrolyte membrane fuel cell (PEMFC), and for reacting inorganic and organic compounds, e.g. when synthesizing organic compounds with the aid of membrane reactors or purifying exhaust gases. The disclosed catalytically active composition contains at least one polysiloxane comprising metal ions and/or metal atoms. In its most simple embodiment, the catalytically active composition can be obtained using a method that comprises a step in which at least one initial organosilicon compound is polymerized in the presence of metal ions. Advantageously, the initial siloxane compound and the metal ions are provided at the most homogeneous possible distribution during the polymerization process.
    • 本发明涉及一种催化活性组合物,其包含至少一种聚硅氧烷,其中该催化动作等引起的夹杂物的金属中心,如铂,镍,具有该组合物,并用由该组合物/催化剂的膜 - 电极组件(MEA)的。 催化活性组合物,可能是由于它们的性质优选地作为在电化学应用的电催化剂,特别是PoIymer电解质膜燃料电池(PEMFC)和在无机和有机化合物的有机化合物的合成反应,例如,使用膜反应器或 使用废气净化的。 本发明的催化活性组合物包含至少一种聚硅氧烷与金属离子和/或金属原子。 在其最简单的实施方案中,催化活性组合物是通过一个方法,它包括在金属离子的存在,其中所述硅氧烷起始化合物和金属离子存在于聚合过程中,有利地在均相分布尽可能聚合至少一种含硅的有机起始化合物的步骤获得。