公开(公告)号：US20160359172A1

公开(公告)日：2016-12-08

申请号：US15103383

申请日：2014-08-26

Applicant: SHOWA DENKO K.K.

Inventor： Kunning ZHU ,  Kunchan LEE

IPC: H01M4/92 ,  H01M4/88

CPC classification number: H01M4/921 ,  H01M4/88 ,  H01M4/925 ,  H01M4/926 ,  H01M4/928

Abstract: 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.

Abstract translation: 提供了一种适用于工业大规模生产的具有高活性的含铂合金的燃料电池电极催化剂的制造方法。 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，以及交替地使分散体用氧化物 气体并用惰性气体或还原气体鼓泡。

公开(公告)号：US20160099473A1

公开(公告)日：2016-04-07

申请号：US14894050

申请日：2014-05-27

Applicant: SHOWA DENKO K.K.

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

IPC: H01M4/92 ,  C22C5/04 ,  H01M8/10

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

Abstract: 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 %. Also disclosed is a support-type catalyst particle, a fuel cell catalyst layer, an electrode including the fuel cell catalyst layer and a membrane electrode assembly including the electrode.

Abstract translation: 通过X射线光电子能谱（XPS）测定的铂和钯的催化剂粒子的比例相对于铂和钯的总量为45〜55原子％ 原子％。 还公开了载体型催化剂颗粒，燃料电池催化剂层，包括燃料电池催化剂层的电极和包括电极的膜电极组件。