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1. WO2020059783 - ELECTRODE

Publication Number WO/2020/059783
Publication Date 26.03.2020
International Application No. PCT/JP2019/036710
International Filing Date 19.09.2019
IPC
H01M 4/90 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
90Selection of catalytic material
B01J 23/26 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
16of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
24Chromium, molybdenum or tungsten
26Chromium
B01J 23/72 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
70of the iron group metals or copper
72Copper
B01J 23/745 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
70of the iron group metals or copper
74Iron group metals
745Iron
B01J 23/755 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
70of the iron group metals or copper
74Iron group metals
755Nickel
B01J 35/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
02Solids
04Foraminous structures, sieves, grids, honeycombs
CPC
B01J 23/26
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
16of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
24Chromium, molybdenum or tungsten
26Chromium
B01J 23/72
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
70of the iron group metals or copper
72Copper
B01J 23/745
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
70of the iron group metals or copper
74Iron group metals
745Iron
B01J 23/755
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
70of the iron group metals or copper
74Iron group metals
755Nickel
B01J 35/04
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
02Solids
04Foraminous structures, sieves, grids, honeycombs
B22F 1/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties
Applicants
  • 株式会社グラヴィトン GRAVITON CO., LTD. [JP]/[JP]
Inventors
  • 奥山 正己 OKUYAMA Masami
  • 鈴木 健治 SUZUKI Kenji
Agents
  • 小林 義孝 KOBAYASHI YOSHITAKA
Priority Data
2018-17480319.09.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ELECTRODE
(FR) ÉLECTRODE
(JA) 電極
Abstract
(EN)
[Problem] To provide an electrode that can be produced inexpensively without using a platinum group element, and that can exhibit approximately the same catalytic activity (catalytic action) as the electrode including a platinum group element. [Solution] This electrode 10 is an alloy-metal transition metal thin sheet electrode of a porous structure in which austenitic stainless steel, a ferroalloy, and Cu selected so that the combined work function approximates the work function of a platinum group element are used as raw materials. An alloy-metal transition metal fine powder mixture obtained by uniformly mixing and dispersing a stainless steel alloy fine powder, a ferroalloy fine powder, and a Cu metal fine powder is compressed into the form of a thin plate of prescribed area, and subsequently baked to form a large number of fine channels. With the electrode 10, the weight ratio of the stainless steel alloy fine powder, the weight ratio of the ferroalloy fine powder, and the weight ratio of the Cu metal fine powder with respect to the total weight of the alloy-metal transition metal fine powder mixture are determined so that the combined work function of the of the work functions of the stainless steel alloy fine powder, the ferroalloy fine powder, and the Cu metal fine powder approximates the work function of a platinum group element.
(FR)
L’invention aborde le problème de la fourniture d'une électrode qui peut être produite à faible coût sans utiliser d'élément du groupe du platine mais qui peut démontrer sensiblement la même activité catalytique (effet catalytique) qu'une électrode contenant un élément du groupe du platine. La solution selon l'invention porte sur une électrode 10 qui est une électrode en feuille mince de métal de transition métal-alliage d'une structure poreuse dans laquelle de l'acier inoxydable austénitique, un ferro-alliage, et du Cu sélectionnés de telle sorte que la fonction de travail combinée s'approche de la fonction de travail d'un élément du groupe du platine qui sont utilisés en tant que matières premières. Un mélange de poudre fine de métal de transition métal-alliage obtenu par mélange et dispersion uniformes d'une poudre fine d'alliage d'acier inoxydable, d'une poudre fine de ferro-alliage, et d'une poudre fine métallique de Cu est comprimé sous la forme d'une plaque mince de zone prescrite, puis cuit pour former un grand nombre de canaux fins. Avec cette électrode 10, le rapport en poids de la poudre fine d'alliage d'acier inoxydable, le rapport en poids de la poudre fine de ferro-alliage, et le rapport en poids de la poudre fine métallique de Cu au poids total du mélange de poudre fine de métal de transition métal-alliage sont déterminés de telle sorte que la fonction de travail combinée de la poudre fine d'alliage d'acier inoxydable, de la poudre fine de ferro-alliage, et de la poudre fine métallique de Cu se rapproche de la fonction de travail de l'élément du groupe platine.
(JA)
【課題】白金族元素を利用することなく、廉価に作ることができ、白金族元素を含む電極と略同様の触媒活性(触媒作用)を発揮することができる電極を提供する。 【解決手段】電極10は、合成仕事関数が白金族元素の仕事関数に近似するように選択されたオーステナイト系ステンレスとフェロアロイとCuとを原料とし、ステンレスアロイ微粉体とフェロアロイ微粉体とCuメタル微粉体とを均一に混合・分散したアロイ・メタル遷移金属微粉体混合物を所定面積の薄板状に圧縮した後に焼成して多数の微細な流路を形成したポーラス構造のアロイ・メタル遷移金属薄板電極である。電極10では、ステンレスアロイ微粉体とフェロアロイ微粉体とCuメタル微粉体との仕事関数の合成仕事関数が白金族元素の仕事関数に近似するように、アロイ・メタル遷移金属微粉体混合物の全重量に対するステンレスアロイ微粉体の重量比とフェロアロイ微粉体の重量比とCuメタル微粉体の重量比とが決定されている。
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