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1. WO2020193958 - CATALYST FOR A FUEL CELL

Publication Number WO/2020/193958
Publication Date 01.10.2020
International Application No. PCT/GB2020/050743
International Filing Date 20.03.2020
IPC
H01M 4/88 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
88Processes of manufacture
H01M 4/92 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
92Metals of platinum group
B01J 23/89 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
89combined with noble metals
B01J 37/00 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
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
H01M 8/1018 2016.01
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
1016characterised by the electrolyte material
1018Polymeric electrolyte materials
CPC
B01J 21/18
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
21Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
18Carbon
B01J 23/892
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
89combined with noble metals
892Nickel and noble metals
B01J 35/023
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
023Catalysts characterised by dimensions, e.g. grain size
B01J 37/0215
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
02Impregnation, coating or precipitation
0215Coating
B01J 37/035
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
02Impregnation, coating or precipitation
03Precipitation; Co-precipitation
031Precipitation
035Precipitation on carriers
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
Applicants
  • JOHNSON MATTHEY FUEL CELLS LIMITED [GB]/[GB]
Inventors
  • MARTINEZ-BONASTRE, Alejandro
  • O'MALLEY, Rachel
  • THEOBALD, Brian
Agents
  • SCOTT, Philip
Priority Data
1903950.222.03.2019GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CATALYST FOR A FUEL CELL
(FR) CATALYSEUR POUR PILE À COMBUSTIBLE
Abstract
(EN)
The present invention provides a process for preparing a catalyst precursor, said process comprising the steps of (i) providing PtaXb alloy particles on a support material and (ii) applying a shell of X to the PtaXb alloy particles to provide a catalyst precursor comprising particles having a PtaXb core and an X shell. The ratio of a to b is in the range of and including 10:1 to 1 :2.5 and X is Co, Ni, Y, Gd, Sc or Cu. Also provided is a process for preparing a catalyst material.
(FR)
La présente invention concerne un procédé de préparation d'un précurseur de catalyseur. Ledit procédé comprend les étapes consistant à (i) fournir des particules d'alliage PtaXb sur un matériau de support et à (ii) appliquer une enveloppe de X aux particules d'alliage de PtaXb pour fournir un précurseur de catalyseur comprenant des particules ayant un cœur en PtaXb et une enveloppe en X. Le rapport a sur b est compris dans la plage de 0:1 à 1: 2,5 inclus et X peut être parmi le Co, Ni, Y, Gd, Sc ou Cu. L'invention concerne également un procédé de préparation d'un matériau de catalyseur.
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