公开(公告)号：US10833334B2

公开(公告)日：2020-11-10

申请号：US16072946

申请日：2017-01-26

申请人： JOHNSON MATTHEY FUEL CELLS LIMITED

发明人： Alejandro Martinez Bonastre ,  Geoffrey Hugh Spikes ,  Rachel Louise O'Malley

IPC分类号： B01J23/40 ,  B01J23/48 ,  B01J23/60 ,  B01J23/648 ,  H01M4/88 ,  H01M4/92 ,  H01M4/90 ,  H01M8/1004 ,  H01M8/1018

摘要： A process for preparing a catalyst material, said catalyst material comprising a support material, a first metal and one or more second metals, wherein the first metal and the second metal(s) are alloyed and wherein the first metal is a platinum group metal and the second metal(s) is selected from the group of transition metals and tin provided the second metal(s) is different to the first metal is disclosed. The process comprises depositing a silicon oxide before or after deposition of the second metal(s), alloying the first and second metals and subsequently removing silicon oxide. A catalyst material prepared by this process is also disclosed.

公开(公告)号：US20210020953A1

公开(公告)日：2021-01-21

申请号：US17063788

申请日：2020-10-06

申请人： Johnson Matthey Fuel Cells Limited

发明人： Alejandro Martinez Bonastre ,  Geoffrey Hugh Spikes ,  Rachel Louise O'Malley

IPC分类号： H01M4/88 ,  H01M4/92 ,  H01M4/90 ,  H01M8/1004

摘要： A process for preparing a catalyst material, said catalyst material comprising a support material, a first metal and one or more second metals, wherein the first metal and the second metal(s) are alloyed and wherein the first metal is a platinum group metal and the second metal(s) is selected from the group of transition metals and tin provided the second metal(s) is different to the first metal is disclosed. The process comprises depositing a silicon oxide before or after deposition of the second metal(s), alloying the first and second metals and subsequently removing silicon oxide. A catalyst material prepared by this process is also disclosed.