公开(公告)号：EP3269449A1

公开(公告)日：2018-01-17

申请号：EP16761752.1

申请日：2016-03-08

申请人： The Doshisha ,  Ishifuku Metal Industry Co., Ltd.

发明人： INABA, Minoru ,  DAIMON, Hideo ,  OKUNO, Kosuke ,  HIGUCHI, Shunya ,  MATSUI, Yuki ,  AOKI, Naoya ,  INOUE, Hideo ,  NISHIKAWA, Takehito

IPC分类号： B01J37/18 ,  B01J23/44 ,  B01J35/08 ,  B01J37/14 ,  H01M4/88 ,  H01M4/92 ,  H01M8/10

CPC分类号： H01M4/88 ,  B01J23/44 ,  B01J35/08 ,  B01J37/14 ,  B01J37/18 ,  H01M4/921 ,  H01M4/926 ,  H01M2008/1095

摘要： The purpose of the present invention is to provide a method for manufacturing a platinum core-shell catalyst that uses palladium (Pd) as a core metal, or a platinum catalyst containing platinum and a metal besides platinum, wherein the platinum catalyst is supported on carbon and has excellent oxygen reduction activity; and a manufacturing method by which it is possible to manufacture the catalyst industrially on a mass scale. This method for manufacturing a platinum catalyst for a fuel cell containing platinum and a metal besides platinum includes (I) a step for bringing about the presence of a chemical species imparting higher potential than the initial oxide formation potential of the platinum of the platinum catalyst, and (II) a step for bringing about the presence of a chemical species imparting lower potential than the initial oxide formation potential of the platinum of the platinum catalyst, the steps being carried out in a dispersion solution of the platinum catalyst dispersed in an acidic solution containing protons.

摘要翻译： 本发明的目的是提供一种制造以钯（Pd）为核心金属的铂核壳催化剂或含铂和铂以外的金属的铂催化剂的方法，其中铂催化剂负载于碳 并具有优异的氧还原活性; 以及可以在工业上大规模制造催化剂的制造方法。 除了铂以外，该用于制造含有铂和金属的燃料电池用铂催化剂的方法包括：（I）用于使铂催化剂的铂的初始氧化物形成电位具有较高电位的化学物质的存在， 和（II）用于使铂催化剂的铂的初始氧化物形成电位具有较低电位的化学物质的存在的步骤，所述步骤在分散于酸性溶液中的铂催化剂的分散溶液中进行 含有质子。

公开(公告)号：EP4257269A1

公开(公告)日：2023-10-11

申请号：EP21900367.0

申请日：2021-11-08

申请人： Ishifuku Metal Industry Co., Ltd. ,  The Doshisha

发明人： AOKI, Naoya ,  SUGAWARA, Yoko ,  INABA, Minoru ,  DAIMON, Hideo

IPC分类号： B22F9/00 ,  B22F9/24 ,  B01J37/04 ,  B01J37/16 ,  B01J23/52 ,  B22F1/00 ,  B22F1/0545 ,  B22F1/102 ,  B22F1/18

摘要： Provided is a gold-supported carbon catalyst, which has a smaller size of gold fine particles, and which has strong adhesive strength with carbon black and is capable of suppressing aggregation of gold fine particles. The gold-supported carbon catalyst includes gold fine particles supported on carbon black, wherein the gold fine particles are coordinated by an alkanethiol at a coverage of from 10% to 70%, and wherein the gold fine particles have an average particle diameter of from 1.0 nm to 1.5 nm.