发明名称 |
METHOD FOR PRODUCING A CATALYST FOR FUEL CELLS |
摘要 |
An object of the present invention is to provide a production method which can increase the activity of a catalyst particle comprising a core particle and an outermost layer, the core particle comprising at least one of palladium and a palladium alloy, and the outermost layer comprising at least one of platinum and a platinum alloy and covering the core particle. The method is for producing a catalyst for fuel cells, in which a catalyst particle is supported by an electroconductive carrier, the method comprising the steps of: preparing a supported catalyst in which a catalyst particle comprising a core particle and an outermost layer is supported by an electroconductive carrier, the core particle comprising at least one of palladium and a palladium alloy, and the outermost layer comprising at least one of platinum and a platinum alloy and covering the core particle; acid treatment to bring the supported catalyst into contact with an acid solution which dissolves palladium more preferentially than platinum; and firing the supported catalyst at 80° C. or more and less than 200° C. in a reducing gas atmosphere after the acid treatment step. |
申请公布号 |
EP2917952(B1) |
申请公布日期 |
2016.04.13 |
申请号 |
EP20120795091 |
申请日期 |
2012.11.07 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA;AUDI AG |
发明人 |
KANEKO, KEIICHI;TAKEHIRO, NAOKI;TANIGUCHI, TAKUMI;ARAI, TATSUYA;KITAO, NORIYUKI;ADACHI, MAKOTO;KIMURA, HIROKO |
分类号 |
H01M4/86;B01J38/60;H01M4/88;H01M4/92;H01M8/10 |
主分类号 |
H01M4/86 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|