公开(公告)号：US20120316054A1

公开(公告)日：2012-12-13

申请号：US13557103

申请日：2012-07-24

申请人： Marco LOPEZ ,  Michael LENNARTZ ,  Dan V. GOIA ,  Carsten BECKER ,  Stéphanie CHEVALLIOT

发明人： Marco LOPEZ ,  Michael LENNARTZ ,  Dan V. GOIA ,  Carsten BECKER ,  Stéphanie CHEVALLIOT

IPC分类号： B01J23/42 ,  B01J23/52 ,  B01J23/50 ,  B01J23/89

CPC分类号： B22F1/025 ,  B22F1/0018 ,  B22F2998/00 ,  B82Y30/00 ,  H01M4/8605 ,  H01M4/8842 ,  H01M4/921 ,  H01M4/926 ,  H01M8/1007 ,  Y10T29/49345 ,  Y10T428/2991 ,  B22F9/24

摘要： The invention discloses core/shell, type catalyst particles comprising a Mcore/Mshell structure with Mcore=inner particle core and Mshell=outer particle shell, wherein the medium diameter of the catalyst particle (dcore+shell) is in the range of 20 to 100 nm, preferably in the range of 20 to 50 nm. The thickness of the outer shell (tshell) is about 5 to 20% of the diameter of the inner particle core of said catalyst particle, preferably comprising at least 3 atomic layers. The core/shell type catalyst particles, particularly the particles comprising a Pt˜based shell reveal a high specific activity. The catalyst particles are preferably supported on suitable support materials such as carbon black and are used as electrocatalysts for fuel cells.

摘要翻译： 本发明公开了包含Mcore / Mshell结构的核/壳型催化剂颗粒，其中Mcore =内颗粒核和Mshell =外颗粒壳，其中催化剂颗粒的介质直径（dcore +壳）在20至100的范围内 nm，优选在20〜50nm的范围内。 外壳的厚度（tshell）为所述催化剂颗粒的内颗粒芯的直径的约5至20％，优选包含至少3个原子层。 核/壳型催化剂颗粒，特别是包含基于Pt的壳的颗粒显示高的比活性。 催化剂颗粒优选负载在合适的载体材料如炭黑上，并用作燃料电池的电催化剂。

公开(公告)号：US20110086295A1

公开(公告)日：2011-04-14

申请号：US12797520

申请日：2010-06-09

申请人： Marco LOPEZ ,  Michael LENNARTZ ,  Dan V. GOIA ,  Carsten BECKER ,  Stephanie CHEVALLIOT

发明人： Marco LOPEZ ,  Michael LENNARTZ ,  Dan V. GOIA ,  Carsten BECKER ,  Stephanie CHEVALLIOT

IPC分类号： H01M4/92 ,  B01J23/66 ,  B01J21/18 ,  B01J23/89

CPC分类号： H01M4/921 ,  H01M4/925 ,  H01M4/926 ,  Y10T428/2991

摘要： The invention discloses core/shell type catalyst particles comprising a Mcore/Mshell structure with Mcore=inner particle core and Mshell=outer particle shell, wherein the medium diameter of the catalyst particle (dcore+shell) is ≧20 nm. The thickness of the outer shell (tshell) comprises at least 3 atomic layers.The core/shell type catalyst particles, particularly the particles comprising a Pt-based shell, reveal a high specific activity. The catalyst particles are preferably supported on suitable support materials such as carbon black and are used as electrocatalysts for fuel cells.

摘要翻译： 本发明公开了包含Mcore / Mshell结构的核/壳型催化剂颗粒，其中Mcore =内颗粒核和Mshell =外颗粒壳，其中催化剂颗粒的介质直径（dcore +壳）为≥20nm。 外壳的厚度（tshell）包括至少3个原子层。 核/壳型催化剂颗粒，特别是包含Pt基壳的颗粒显示高的比活性。 催化剂颗粒优选负载在合适的载体材料如炭黑上，并用作燃料电池的电催化剂。