公开(公告)号：US20060144791A1

公开(公告)日：2006-07-06

申请号：US11026067

申请日：2004-12-30

申请人： Mark Debe ,  Clayton Hamilton

发明人： Mark Debe ,  Clayton Hamilton

IPC分类号： C22B11/00 ,  B01D61/00

CPC分类号： C08J5/2287 ,  C08J2327/18 ,  H01M4/8605 ,  H01M4/92 ,  H01M8/008 ,  H01M8/1007 ,  H01M8/1051 ,  Y02W30/86

摘要： A method and apparatus is provided for recovering platinum metal from a catalyst-coated membrane comprising nanostructured elements by exposure to an oxidizing acidic solution. The method may additionally include, the subsequent step of precipitating a platinum salt from the oxidizing acidic solution. The method may additionally include the subsequent step of calcining the platinum salt.

摘要翻译： 提供一种方法和装置，用于通过暴露于氧化性酸性溶液从包含纳米结构元素的催化剂涂覆的膜中回收铂金属。 该方法可以另外包括从氧化性酸性溶液中沉淀铂盐的后续步骤。 该方法可以另外包括煅烧铂盐的随后步骤。

公开(公告)号：US20060147791A1

公开(公告)日：2006-07-06

申请号：US11026986

申请日：2004-12-30

申请人： Mark Debe ,  Clayton Hamilton

发明人： Mark Debe ,  Clayton Hamilton

IPC分类号： H01M8/00 ,  A62D3/00 ,  B01J15/00

CPC分类号： C22B3/44 ,  C22B3/10 ,  C22B7/007 ,  C22B11/048 ,  Y02P10/214 ,  Y02P10/234

摘要： A method and apparatus is provided for recovering platinum metal from a fuel cell stack without disassembly, burning or electrolysis by introducing an oxidizing acidic solution to at least one of the ports of the stack. The method may additionally include the subsequent step of precipitating a platinum salt from the oxidizing acidic solution.

摘要翻译： 提供了一种方法和装置，用于通过将氧化性酸性溶液引入到堆叠的至少一个端口而从燃料电池堆中回收铂金属而不需要拆卸，燃烧或电解。 该方法可以另外包括从氧化性酸性溶液中沉淀铂盐的后续步骤。

公开(公告)号：US20070082256A1

公开(公告)日：2007-04-12

申请号：US11248561

申请日：2005-10-12

申请人： Mark Debe ,  Susan Hendricks ,  George Vernstrom ,  Alison Schmoeckel ,  Radoslav Atanasoski ,  Clayton Hamilton

发明人： Mark Debe ,  Susan Hendricks ,  George Vernstrom ,  Alison Schmoeckel ,  Radoslav Atanasoski ,  Clayton Hamilton

IPC分类号： H01M4/92 ,  H01M4/88 ,  B01J23/42

CPC分类号： H01M4/92 ,  C08J5/2237 ,  C08J2327/18 ,  H01M4/926 ,  H01M8/1004 ,  H01M8/1018 ,  H01M8/1023 ,  H01M8/1039 ,  H01M2300/0082

摘要： A fuel cell cathode catalyst is provided comprising nanostructured elements comprising microstructured support whiskers bearing nanoscopic catalyst particles; wherein the catalyst comprises platinum and manganese and at least one other metal selected from the group consisting of Group VIb metals, Group VIIb metals and Group VIIIb metals other than platinum and manganese; wherein the volume ratio of platinum to the sum of all other metals in the catalyst is between about 1 and about 4, more typically between 1 and 4, more typically between about 2.5 and about 3.5, more typically between 2.5 and 3.5, and most typically about 3, and wherein the Mn content is equal to or greater than about 5 micrograms/cm2 areal density. Typically, the volume ratio of manganese to the at least one other metal is between 10:90 and 90:10. In one embodiment, the volume ratio of platinum to manganese to the at least one other metal is about 6:1:1. Typically, the at least one other metal is Ni or Co. In addition, the present invention provides a fuel cell membrane electrode assembly (MEA) comprising the fuel cell cathode catalyst according to the present invention. In addition, the present invention also provides methods of making the cathode catalyst of the present invention.

摘要翻译： 提供了包括纳米结构元件的燃料电池阴极催化剂，其包含具有纳米级催化剂颗粒的微结构化支撑晶须; 其中所述催化剂包含铂和锰以及选自除了铂和锰之外的第Ⅵb族金属，Ⅶb族金属和Ⅷb族金属的至少一种其它金属; 其中铂与催化剂中所有其它金属的总和的体积比为约1至约4，更典型地为1至4，更典型地为约2.5至约3.5，更典型地为2.5至3.5，最典型地为 约3，并且其中Mn含量等于或大于约5微克/厘米2密度。 通常，锰与至少一种其它金属的体积比在10:90至90:10之间。 在一个实施方案中，铂与锰与至少一种其它金属的体积比为约6:1:1。 通常，至少一种其它金属是Ni或Co。另外，本发明还提供一种包含根据本发明的燃料电池阴极催化剂的燃料电池膜电极组件（MEA）。 另外，本发明还提供了制造本发明的阴极催化剂的方法。