公开(公告)号：EP3006106B1

公开(公告)日：2019-02-06

申请号：EP14803552.0

申请日：2014-05-27

申请人： Showa Denko K.K.

发明人： ZHU, Kunning ,  KITAGAWA, Tomoya ,  LEE, Kunchan ,  KUSAKA, Masabumi ,  MORIYA, Toshinori

IPC分类号： C22C5/04 ,  H01M8/1004 ,  H01M8/1011 ,  H01M4/92

公开(公告)号：EP3089249B1

公开(公告)日：2018-10-10

申请号：EP14874337.0

申请日：2014-08-26

申请人： Showa Denko K.K.

发明人： ZHU, Kunning ,  LEE, Kunchan

IPC分类号： H01M4/92 ,  B01J23/44 ,  B01J23/89 ,  B01J37/14 ,  H01M8/10

CPC分类号： H01M4/921 ,  H01M4/88 ,  H01M4/925 ,  H01M4/926 ,  H01M4/928

摘要： A method is provided for producing a platinum alloy-containing fuel cell electrode catalyst with high activity which is suited for its industrial mass-production. The method for producing a fuel cell electrode catalyst includes a step of preparing a dispersion in which particles of a fuel cell electrode catalyst precursor including a platinum alloy is dispersed in an electrolyte solution, and a step of alternately subjecting the dispersion to bubbling with an oxidizing gas and to bubbling with an inert gas or a reducing gas.

公开(公告)号：EP3089249A1

公开(公告)日：2016-11-02

申请号：EP14874337.0

申请日：2014-08-26

申请人： Showa Denko K.K.

发明人： ZHU, Kunning ,  LEE, Kunchan

IPC分类号： H01M4/88 ,  B01J23/44 ,  B01J23/89 ,  B01J37/14 ,  H01M8/10

CPC分类号： H01M4/921 ,  H01M4/88 ,  H01M4/925 ,  H01M4/926 ,  H01M4/928

摘要： A method is provided for producing a platinum alloy-containing fuel cell electrode catalyst with high activity which is suited for its industrial mass-production. The method for producing a fuel cell electrode catalyst includes a step of preparing a dispersion in which particles of a fuel cell electrode catalyst precursor including a platinum alloy is dispersed in an electrolyte solution, and a step of alternately subjecting the dispersion to bubbling with an oxidizing gas and to bubbling with an inert gas or a reducing gas.

摘要翻译： 提供一种制造具有高活性的含铂合金的燃料电池用电极催化剂的方法，适用于其工业批量生产。 燃料电池用电极催化剂的制造方法包括以下步骤：制备其中包含铂合金的燃料电池电极催化剂前体的颗粒分散在电解液中的分散体，以及将该分散体交替进行氧化 气体并用惰性气体或还原气体鼓泡。

公开(公告)号：EP3006106A1

公开(公告)日：2016-04-13

申请号：EP14803552.0

申请日：2014-05-27

申请人： Showa Denko K.K.

发明人： ZHU, Kunning ,  KITAGAWA, Tomoya ,  LEE, Kunchan ,  KUSAKA, Masabumi ,  MORIYA, Toshinori

IPC分类号： B01J27/24 ,  B01J23/44 ,  H01M4/86 ,  H01M4/90 ,  H01M4/96 ,  H01M8/00 ,  H01M8/02 ,  H01M8/10

CPC分类号： H01M4/921 ,  C22C5/04 ,  H01M4/92 ,  H01M4/925 ,  H01M4/926 ,  H01M8/1004 ,  H01M8/1011 ,  H01M2250/20 ,  H01M2250/30 ,  Y02B90/18 ,  Y02E60/523 ,  Y02T90/32

摘要： [Problem to be Solved] To provide a catalyst particle including Pt and Pd, a support-type catalyst particle in which the catalyst is supported, and the like, which have a high oxygen reduction activity and a low methanol oxidation activity.
[Solution] A catalyst particle including platinum and palladium, and having a proportion of palladium in the surface of the particle, measured by X-ray photoelectron spectroscopy (XPS), of 45 to 55 atom% with respect to a total amount of platinum and palladium of 100 atom%.