公开(公告)号：US20180159145A1

公开(公告)日：2018-06-07

申请号：US15797336

申请日：2017-10-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHUZO TSUCHIDA ,  RYOUHEI SEKI ,  YASUHIRO UEYAMA

IPC: H01M4/92 ,  H01M8/1039 ,  B01J23/42

CPC classification number: H01M4/925 ,  B01J23/42 ,  C07C309/06 ,  H01M4/8663 ,  H01M8/1039

Abstract: A catalyst, includes: a carbon support that possesses functional groups including a carboxyl group; and a metal that is supported onto the carbon support, wherein the proportion of the carboxyl group to the functional groups is 10% or higher. A method for producing a catalyst includes: (i) supporting metal particles onto a carbon support; (ii) bringing the carbon support into contact with an acid solution; and (iii) calcining the carbon support after Step (ii), wherein the carbon support included in the produced catalyst possesses functional groups including a carboxyl group, and the proportion of said carboxyl group to the functional groups is 10% or higher.

公开(公告)号：US20210381981A1

公开(公告)日：2021-12-09

申请号：US17241801

申请日：2021-04-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROAKI YOSHIDA ,  YOSHIE TAKAHASHI ,  KAZUTO FUKUDA ,  RYOUHEI SEKI

IPC: G01N21/64

Abstract: A gas sensor element includes: a supporting base material; a first light-emitting layer that is provided on the supporting base material and contains a first light-emitting particle which emits light at a first peak wavelength; a sensor layer that is provided on the first light-emitting layer and adsorbs gas molecules; a second light-emitting layer that is provided on the sensor layer and contains a second light-emitting particle which emits light at a second peak wavelength different from the first peak wavelength; and a protective layer that is provided on the second light-emitting layer, in which the gas sensor element has a laminated structure in which the supporting base material, the first light-emitting layer, the sensor layer, the second light-emitting layer, and the protective layer are laminated in this order, and the laminated structure includes an opening that penetrates a part or entirety of the laminated structure.

公开(公告)号：US20190103613A1

公开(公告)日：2019-04-04

申请号：US16137075

申请日：2018-09-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHUZO TSUCHIDA ,  RYOUHEI SEKI ,  YASUHIRO UEYAMA

IPC: H01M4/92 ,  H01M4/86 ,  H01M8/1058 ,  H01M8/1004

Abstract: A catalyst layer, includes: a carrier; metal particles located over the carrier; an underlayer located on the carrier; and an ionomer-based layer located over the underlayer, wherein the underlayer includes a polymer material, and covers at least parts of the metal particles, and the ionomer-based layer includes a proton-conducting resin. A fuel cell electrode includes the catalyst layer, and a fuel cell including the above catalyst layer. A method for producing a catalyst layer, includes: bringing at least one first solution including a polymer material into contact with a metal-particle-supported carrier to form an underlayer; and bringing a second solution including a proton-conducting resin into contact with the metal-particle-supported carrier to coat said metal-particle-supported carrier with the proton-conducting resin.