公开(公告)号：US08785346B2

公开(公告)日：2014-07-22

申请号：US12480545

申请日：2009-06-08

申请人： Juergen Biener ,  Alex V. Hamza ,  Marcus Baeumer ,  Christian Schulz ,  Birte Jürgens ,  Monika M. Biener

发明人： Juergen Biener ,  Alex V. Hamza ,  Marcus Baeumer ,  Christian Schulz ,  Birte Jürgens ,  Monika M. Biener

IPC分类号： B01J23/50 ,  B01J23/52 ,  H01M4/90 ,  H01M4/98 ,  B01J23/56 ,  B01J25/00 ,  H01M8/10

CPC分类号： B01J23/52 ,  B01J23/56 ,  B01J25/00 ,  H01M4/90 ,  H01M4/98 ,  H01M2008/1095 ,  Y02E60/50

摘要： A method for forming a gold-containing catalyst with porous structure according to one embodiment of the present invention includes producing a starting alloy by melting together of gold and at least one less noble metal that is selected from the group consisting of silver, copper, rhodium, palladium, and platinum; and a dealloying step comprising at least partial removal of the less noble metal by dissolving the at least one less noble metal out of the starting alloy. Additional methods and products thereof are also presented.

摘要翻译： 根据本发明的一个实施方案，形成具有多孔结构的含金催化剂的方法包括通过将金和至少一种较少的贵金属熔融在一起来制备起始合金，所述金属选自银，铜，铑 ，钯和铂; 以及脱金合步骤，其包括通过将所述至少一种较低贵重金属从所述起始合金中溶解出来至少部分去除所述较低贵金属。 还提供了附加的方法和产品。

公开(公告)号：US20090291848A1

公开(公告)日：2009-11-26

申请号：US12480545

申请日：2009-06-08

申请人： Juergen Biener ,  Alex V. Hamza ,  Marcus Baeumer ,  Christian Schulz ,  Birte Jürgens ,  Monika M. Biener

发明人： Juergen Biener ,  Alex V. Hamza ,  Marcus Baeumer ,  Christian Schulz ,  Birte Jürgens ,  Monika M. Biener

IPC分类号： B01J23/50

CPC分类号： B01J23/52 ,  B01J23/56 ,  B01J25/00 ,  H01M4/90 ,  H01M4/98 ,  H01M2008/1095 ,  Y02E60/50

摘要： The invention relates to a gold-containing catalyst with porous structure that is obtainable through a process that comprises the following steps: melting together of gold and at least one less noble metal that is selected from the group consisting of silver, copper, rhodium, palladium, and platinum, and at least partial removal by dissolving the at least one less noble metal out of the starting alloy thus obtained. The catalyst has high activity and great long-term stability, despite the fact that it does not contain a support material or a compound that serves as a support material. The catalyst can be used to accelerate and/or to influence the product selectivity of oxidation and reduction reactions. The catalyst is suitable, for example, for the oxidization of carbon monoxide to carbon dioxide, which makes it usable, among other things, in a fuel cell, in particular a polymer electrolyte membrane fuel cell (PEM), for protection of the anode catalyst against blocking by carbon monoxide.

摘要翻译： 本发明涉及具有多孔结构的含金催化剂，其可通过包括以下步骤的方法获得：将金和至少一种少量贵金属熔合在一起，所述贵金属选自银，铜，铑，钯 和铂，并且通过将如此获得的起始合金中的至少一种较少的贵金属溶解至少部分去除。 催化剂具有高活性和长期的稳定性，尽管它不含支撑材料或用作载体材料的化合物。 催化剂可用于加速和/或影响氧化和还原反应的产物选择性。 该催化剂适用于例如将一氧化碳氧化成二氧化碳，这使得其在燃料电池，特别是聚合物电解质膜燃料电池（PEM）中可用于保护阳极催化剂 防止一氧化碳堵塞。