公开(公告)号：US20220021005A1

公开(公告)日：2022-01-20

申请号：US17324577

申请日：2021-05-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： NOBUHIRO MIYATA ,  HARUHIKO SHINTANI ,  TOMOKATSU WADA

IPC: H01M4/86 ,  H01M4/90 ,  B01J35/10

Abstract: An electrode catalyst for a fuel battery includes a mesoporous material and catalyst metal particles supported at least in the mesoporous material. In the electrode catalyst for a fuel battery, before supporting the catalyst metal particles, the mesoporous material has mesopores having a mode radius of greater than or equal to 1 nm and less than or equal to 25 nm and has a value of greater than 0.90, the value being determined by dividing a specific surface area S1-25 (m2/g) of the mesopores obtained by analyzing a nitrogen adsorption-desorption isotherm according to a BJH method, the mesopores having a radius of greater than or equal to 1 nm and less than or equal to 25 nm, by a BET specific surface area (m2/g) evaluated according to a BET method.

公开(公告)号：US20230395819A1

公开(公告)日：2023-12-07

申请号：US18453346

申请日：2023-08-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： NOBUHIRO MIYATA ,  HARUHIKO SHINTANI

IPC: H01M4/92 ,  H01M12/06

CPC classification number: H01M4/926 ,  H01M12/06 ,  H01M2300/0082

Abstract: An electrode catalyst according to the present disclosure includes a mesoporous material and catalyst metal particles which are supported in at least an inner portion of the mesoporous material and which contain platinum and a metal different from platinum. The mesoporous material has mesopores having a mode radius of greater than or equal to 1 nm and less than or equal to 25 nm and a pore volume of greater than or equal to 1.0 cm3/g and less than or equal to 3.0 cm3/g. The catalyst metal particles which are supported have an L10 structure. The proportion of the L10 structure is greater than 0.25.

公开(公告)号：US20210242471A1

公开(公告)日：2021-08-05

申请号：US17232385

申请日：2021-04-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HARUHIKO SHINTANI ,  NOBUHIRO MIYATA ,  TOMOKATSU WADA

IPC: H01M4/92 ,  B01J21/18 ,  B01J23/75 ,  B01J23/42 ,  H01M8/1004 ,  H01M8/1067 ,  B01J37/02 ,  B01J35/10 ,  B01J35/02 ,  B01J37/16 ,  B01J37/08

Abstract: A catalyst includes a mesoporous material and catalytic metal particles supported at least within the mesoporous material and containing platinum and a metal different from platinum. The mesoporous material has mesopores with a mode radius of 1 to 25 nm and a pore volume of 1.0 to 3.0 cm3/g before supporting of the catalytic metal particles, and has an average particle size of greater than or equal to 200 nm. A molar ratio of the metal different from platinum and contained in the catalytic metal particles relative to all metals contained in the catalytic metal particles is greater than or equal to 0.25, and among the catalytic metal particles, a volume ratio of catalytic metal particles having a particle size of greater than or equal to 20 nm is less than or equal to 10%.

公开(公告)号：US20150308005A1

公开(公告)日：2015-10-29

申请号：US14666179

申请日：2015-03-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： REIKO TANIGUCHI ,  KENJI TOYODA ,  NOBUHIRO MIYATA

IPC: C25B11/04 ,  C25B1/10

CPC classification number: C25B11/0447 ,  C25B1/10 ,  Y02E60/366

Abstract: The present invention provides a method for generating oxygen. The method comprises (a) preparing a water electrolysis device comprising a container storing an electrolyte aqueous solution; an anode which is in contact with the electrolyte aqueous solution and includes at least one silver delafossite compound selected from the group consisting of a silver cobalt delafossite compound represented by a chemical formula AgCoO2 and a silver rhodium delafossite compound represented by a chemical formula AgRhO2; a cathode which is in contact with the electrolyte aqueous solution; and a power supply, wherein the at least one silver delafossite compound is in contact with the electrolyte aqueous solution, and (b) applying an electric potential difference between the cathode and the anode using the power supply to generate oxygen on the anode due to electrolysis of water which occurs on the at least one silver delafossite compound.

Abstract translation: 本发明提供一种产生氧气的方法。 该方法包括（a）制备水电解装置，其包括容纳电解质水溶液的容器; 阳极，其与电解质水溶液接触，并且包括至少一种选自由化学式AgCoO 2表示的银钴铁矿石化合物和由化学式AgRhO 2表示的银堇青石灰石化合物的银delafossite化合物; 与电解质水溶液接触的阴极; 和电源，其中所述至少一种银色delafossite化合物与所述电解质水溶液接触，以及（b）使用所述电源在所述阴极和所述阳极之间施加电位差以在所述阳极上由于电解而产生氧 的水，其发生在至少一种银色delafossite化合物上。

公开(公告)号：US20150197866A1

公开(公告)日：2015-07-16

申请号：US14541149

申请日：2014-11-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENJI TOYODA ,  REIKO TANIGUCHI ,  NOBUHIRO MIYATA

IPC: C25B11/04 ,  C25B1/10

CPC classification number: C25B11/04 ,  C01B13/0207 ,  C25B1/04 ,  C25B1/10 ,  C25B11/0452 ,  Y02E60/366

Abstract: The present invention provides a method for efficiently generating oxygen by electrolyzing water using a copper delafossite compound as an anode. First, in the present invention, a water electrolysis device is prepared. The water electrolysis device comprises a container, a power supply, an anode, a cathode; and an aqueous electrolytic solution. The anode and the cathode are in contact with the aqueous electrolytic solution. The anode has a copper cobalt delafossite compound represented by a chemical formula CuCoO2. The copper cobalt delafossite compound is in contact with the aqueous electrolytic solution. Then, an electric potential difference is applied between the cathode and the anode using the power supply to generate oxygen on the anode due to electrolysis of water which occurs on the copper cobalt delafossite compound.

Abstract translation: 本发明提供一种通过使用铜铁矿石化合物作为阳极电解水来有效地产生氧的方法。 首先，在本发明中，制备水电解装置。 水电解装置包括容器，电源，阳极，阴极; 和电解水溶液。 阳极和阴极与水性电解液接触。 该阳极具有由化学式CuCoO 2表示的铜钴多铁矿化合物。 铜钴矿石化合物与电解水溶液接触。 然后，使用电源在阴极和阳极之间施加电位差，由于电解铜钴铁矿石化合物上发生的水而在阳极上产生氧。