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1. WO2014126077 - CATALYST FOR SOLID POLYMER FUEL CELLS AND METHOD FOR PRODUCING SAME

Publication Number WO/2014/126077
Publication Date 21.08.2014
International Application No. PCT/JP2014/053122
International Filing Date 12.02.2014
IPC
H01M 4/90 2006.1
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 27/12 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
27Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
06Halogens; Compounds thereof
08Halides
12Fluorides
B01J 33/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
33Protection of catalysts, e.g. by coating
B01J 37/12 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
12Oxidising
B01J 37/26 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
22Halogenating
26Fluorinating
H01M 4/86 2006.1
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
CPC
H01M 2008/1095
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
1095Fuel cells with polymeric electrolytes
H01M 4/8842
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
88Processes of manufacture
8825Methods for deposition of the catalytic active composition
8842Coating using a catalyst salt precursor in solution followed by evaporation and reduction of the precursor
H01M 4/8882
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
88Processes of manufacture
8878Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
8882Heat treatment, e.g. drying, baking
H01M 4/8892
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
88Processes of manufacture
8878Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
8892Impregnation or coating of the catalyst layer, e.g. by an ionomer
H01M 4/921
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
92Metals of platinum group
921Alloys or mixtures with metallic elements
H01M 4/926
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
92Metals of platinum group
925supported on carriers, e.g. powder carriers
926on carbon or graphite
Applicants
  • 田中貴金属工業株式会社 TANAKA KIKINZOKU KOGYO K.K. [JP]/[JP]
Inventors
  • 石田 稔 ISHIDA, Minoru
  • 中島 仁 NAKAJIMA, Hitoshi
  • 松谷 耕一 MATSUTANI, Koichi
Agents
  • 特許業務法人田中・岡崎アンドアソシエイツ TANAKA AND OKAZAKI
Priority Data
2013-02775815.02.2013JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) CATALYST FOR SOLID POLYMER FUEL CELLS AND METHOD FOR PRODUCING SAME
(FR) CATALYSEUR POUR PILES À COMBUSTIBLE À POLYMÈRE SOLIDE ET PROCÉDÉ DE FABRICATION ASSOCIÉ
(JA) 固体高分子形燃料電池用の触媒及びその製造方法
Abstract
(EN) To provide: a catalyst for solid polymer fuel cells, which has excellent initial activity and good durability; and a method for producing the catalyst for solid polymer fuel cells. The present invention is a catalyst for solid polymer fuel cells, which is obtained by having a carbon powder carrier support catalyst particles that are formed of platinum, cobalt and manganese. This catalyst for solid polymer fuel cells is characterized in that: the catalyst particles have a constituent ratio (molar ratio) among platinum, cobalt and manganese, namely Pt:Co:Mn of 1:0.06-0.39:0.04-0.33; the intensity ratio of a peak assigned to a Co-Mn alloy observed near 2θ = 27° relative to the main peak observed near 2θ = 40° is 0.15 or less in the X-ray diffraction analysis on the catalyst particles; and at least the surfaces of the catalyst particles support a fluorine compound that has a C-F bond. The amount of fluorine compound supported is preferably 3-20% based on the total mass of the catalyst.
(FR) La présente invention vise à fournir : un catalyseur pour piles à combustible à polymère solide, qui possède une excellente activité initiale et une bonne durabilité ; et un procédé de fabrication du catalyseur pour piles à combustible à polymère solide. La présente invention est un catalyseur pour piles à combustible à polymère solide, qui est obtenu par fourniture de particules de catalyseur à support porteur en poudre de carbone qui sont formées de platine, de cobalt et de manganèse. Ce catalyseur pour piles à combustible à polymère solide est caractérisé en ce que : les particules de catalyseur comprennent un rapport de constitution (rapport molaire) parmi le platine, le cobalt et le manganèse, à savoir Pt:Co:Mn de 1:0,06-0,39:0,04-0,33 ; le rapport d'intensité d'un pic attribué à un alliage de Co-Mn observé près de 2θ = 27 ° par rapport au pic principal observé près de 2θ = 40 ° est de 0,15 ou moins dans l'analyse par diffraction des rayons X sur les particules de catalyseur ; et au moins les surfaces des particules de catalyseur supportent un composé fluoré qui possède une liaison C-F. La quantité de composé fluoré supportée est de préférence de 3 à 20 % sur la base de la masse totale du catalyseur.
(JA)  初期活性に優れ、耐久性も良好な固体高分子形燃料電池用触媒及びその製造方法を提供すること。 本発明は、白金、コバルト、マンガンからなる触媒粒子が炭素粉末担体上に担持されてなる固体高分子形燃料電池用触媒において、前記触媒粒子は、白金、コバルト、マンガンの構成比(モル比)が、Pt:Co:Mn=1:0.06~0.39:0.04~0.33であり、前記触媒粒子についてのX線回折分析において、2θ=27°近傍に現れるCo-Mn合金のピーク強度比が、2θ=40°近傍に現れるメインピークを基準として0.15以下であり、更に、少なくとも触媒粒子の表面に、C-F結合を有するフッ素化合物が担持されていることを特徴とする固体高分子形燃料電池用触媒である。フッ素化合物の担持量は、触媒全体の質量を基準として、3~20%とするのが好ましい。
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