公开(公告)号：EP3006106A4

公开(公告)日：2017-04-26

申请号：EP14803552

申请日：2014-05-27

申请人： SHOWA DENKO KK

发明人： ZHU KUNNING ,  KITAGAWA TOMOYA ,  LEE KUNCHAN ,  KUSAKA MASABUMI ,  MORIYA TOSHINORI

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

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%.

摘要翻译： [要解决的问题]为了提供包含Pt和Pd的催化剂颗粒，负载催化剂的负载型催化剂颗粒等，其具有高氧还原活性和低甲醇氧化活性。 通过X射线光电子能谱法（XPS）测量，包含铂和钯并且在颗粒表面中的钯的比例相对于铂的总量为45至55原子％的催化剂颗粒和 100原子％的钯。

公开(公告)号：EP3089249A4

公开(公告)日：2017-06-21

申请号：EP14874337

申请日：2014-08-26

申请人： SHOWA DENKO KK

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.

摘要翻译： 本发明提供一种适于工业上大规模生产的具有高活性的含铂合金的燃料电池用电极催化剂的制造方法。 本发明的燃料电池用电极催化剂的制造方法包括：准备将含有铂合金的燃料电池用电极催化剂前体的粒子分散于电解液中而成的分散液的工序;以及将分散液交替地进行氧化鼓泡的工序 气体并用惰性气体或还原气体鼓泡。