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    • 62. 发明授权
    • Method of preparing a platinum catalyst for use in fuel cell electrode
    • 制备用于燃料电池电极的铂催化剂的方法
    • US07713902B2
    • 2010-05-11
    • US11295312
    • 2005-12-05
    • Jongheop YiPil KimHeesoo Kim
    • Jongheop YiPil KimHeesoo Kim
    • B01J23/40B01J23/74
    • H01M4/92B01J21/18B01J23/42B01J37/0018B01J37/084H01M4/926Y10S977/822Y10S977/823
    • The present invention provides methods of preparing an improved platinum catalyst for use in fuel cells. The method includes preparing a platinum-loaded template of mesoporous alumina, and preparing a platinum catalyst using said alumina template. To prepare the template, a platinum solution and an aluminum alkoxide-butanol solution are combined to form a mixture and the mixture is then subjected to hydration and condensation reactions. To prepare the platinum catalyst, the template and carbon precursors are subjected to polymerization, and the resultant composite subjected to heat treatment. Due to the uniform platinum particle size and high specific surface area achieved, the method of the invention can produce a platinum catalyst with high catalytic activity and thermal stability and in turn improve the performance of the fuel cell in which the catalyst is used.
    • 本发明提供了制备用于燃料电池的改进的铂催化剂的方法。 该方法包括制备介孔氧化铝负载铂的模板,并使用所述氧化铝模板制备铂催化剂。 为了制备模板,将铂溶液和醇铝 - 丁醇溶液合并以形成混合物,然后将混合物进行水合和缩合反应。 为了制备铂催化剂,将模板和碳前体进行聚合,所得复合材料进行热处理。 由于铂颗粒尺寸均匀,比表面积高,所以本发明的方法可以生产具有高催化活性和热稳定性的铂催化剂,从而提高使用催化剂的燃料电池的性能。