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。

公开(公告)号：US20170352889A1

公开(公告)日：2017-12-07

申请号：US15538050

申请日：2015-12-25

Applicant: SHOWA DENKO K.K.

Inventor： Kunchan LEE ,  Hiroshi TAKAHASHI ,  Tomoya KITAGAWA

IPC: H01M4/90 ,  H01M4/88 ,  H01M4/92 ,  H01M8/1004

CPC classification number: H01M4/9083 ,  B01J21/04 ,  B01J21/18 ,  B01J23/8913 ,  B01J35/0013 ,  B01J35/008 ,  B01J37/084 ,  H01M4/8817 ,  H01M4/8828 ,  H01M4/9041 ,  H01M4/926 ,  H01M8/1004 ,  H01M2250/10 ,  H01M2250/20 ,  Y02B90/14 ,  Y02P70/56 ,  Y02T90/32

Abstract: A catalyst carrier, an electrode catalyst, an electrode including the catalyst, a membrane electrode assembly including the electrode, and a fuel cell including the membrane electrode assembly. The catalyst carrier includes a carbon material having a chain structure including a chain of carbon particles and an alumina-carbon composite particle in which a carbon particle encloses an alumina particle, the alumina-carbon composite particle is contained in the carbon material, and the catalyst carrier has a BET specific surface area of 450 to 1100 m2/g.

公开(公告)号：US20170346101A1

公开(公告)日：2017-11-30

申请号：US15537907

申请日：2015-12-24

Applicant: SHOWA DENKO K.K.

Inventor： Kunchan LEE ,  Hiroshi TAKAHASHI ,  Tomoya KITAGAWA

IPC: H01M4/90 ,  H01M4/92 ,  B01J37/08 ,  B01J21/18 ,  B01J37/04 ,  B01J35/10 ,  H01M4/96 ,  H01M4/88

CPC classification number: H01M4/9083 ,  B01J21/18 ,  B01J23/8913 ,  B01J32/00 ,  B01J35/0013 ,  B01J35/0033 ,  B01J35/10 ,  B01J35/1019 ,  B01J35/1023 ,  B01J35/1028 ,  B01J37/0036 ,  B01J37/04 ,  B01J37/08 ,  B01J37/16 ,  B01J37/18 ,  B01J37/343 ,  H01M4/88 ,  H01M4/92 ,  H01M4/925 ,  H01M4/96

Abstract: A catalyst carrier, an electrode catalyst, an electrode including the catalyst, a membrane electrode assembly including the electrode, a fuel cell including the membrane electrode assembly, and a method for producing the catalyst carrier. The catalyst carrier includes a carbon material having a chain structure including a chain of carbon particles. The catalyst carrier contains a titanium compound-carbon composite particle in which carbon encloses a titanium compound particle. The molar ratios of a carbon element, a nitrogen element, and an oxygen element to a titanium element taken as 1 in the catalyst carrier are more than 0 and 50 or less, more than 0 and 2 or less, and more than 0 and 3 or less, respectively.

公开(公告)号：US20170326532A1

公开(公告)日：2017-11-16

申请号：US15531175

申请日：2015-11-24

Applicant: SHOWA DENKO K.K.

Inventor： Kunchan LEE ,  Hiroshi TAKAHASHI ,  Tomoya KITAGAWA

IPC: B01J21/18 ,  H01M4/96 ,  H01M4/92 ,  B01J37/08 ,  B01J35/10 ,  H01M8/10 ,  B01J23/89

CPC classification number: B01J21/18 ,  B01J23/89 ,  B01J35/10 ,  B01J37/08 ,  H01M4/9083 ,  H01M4/92 ,  H01M4/926 ,  H01M4/96 ,  H01M8/10 ,  Y02P70/56

Abstract: A catalyst carrier, an electrode catalyst, an electrode including the catalyst, a membrane electrode assembly including the electrode, and a fuel cell including the membrane electrode assembly. The catalyst carrier includes a carbon material having a chain structure including a chain of carbon particles, and an oxide-carbon composite particle in which a carbon particle encloses a particle of an oxide of a group IV element on the periodic table, the oxide-carbon composite particle being contained in the carbon material. The catalyst carrier has a BET specific surface area of 450 to 1100 m2/g.