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1. WO2020065053 - PROCESS FOR PRODUCING METAL ALLOY NANOPARTICLES

Publication Number WO/2020/065053
Publication Date 02.04.2020
International Application No. PCT/EP2019/076283
International Filing Date 27.09.2019
IPC
B01J 37/08 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
08Heat treatment
B01J 37/16 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
16Reducing
B01J 35/00 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
35Catalysts, in general, characterised by their form or physical properties
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
B01J 23/42 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
38of noble metals
40of the platinum group metals
42Platinum
B01J 23/63 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
38of noble metals
54combined with metals, oxides or hydroxides provided for in groups B01J23/02-B01J23/36118
56Platinum group metals
63with rare earths or actinides
CPC
B01J 23/42
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
38of noble metals
40of the platinum group metals
42Platinum
B01J 23/63
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
38of noble metals
54combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
56Platinum group metals
63with rare earths or actinides
B01J 35/0013
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
0013Colloids
B01J 35/006
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
002Catalysts characterised by their physical properties
0046Physical properties of the active metal ingredient
006metal crystallite size
B01J 37/0072
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
0072Preparation of particles, e.g. dispersion of droplets in an oil bath
B01J 37/08
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
08Heat treatment
Applicants
  • DANMARKS TEKNISKE UNIVERSITET [DK]/[DK]
Inventors
  • LI, Qingfeng
  • BRANDES, Benedikt Axel
  • JENSEN, Jens Oluf
  • CLEEMAN, Lars Nilausen
  • HU, Yang
Agents
  • PLOUGMANN VINGTOFT A/S
Priority Data
18197633.328.09.2018EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR PRODUCING METAL ALLOY NANOPARTICLES
(FR) PROCESSUS DE PRODUCTION DE NANOPARTICULES D'ALLIAGE MÉTALLIQUE
Abstract
(EN)
The present invention relates to a process for the production of metal alloy nanoparticles which catalyse the oxygen reduction reaction (ORR) for use in proton exchange membrane fuel cells (PEMFC) or electrolyser cells. In particular, the present invention relates to production of nanoparticles consisting of alloys of a first metal selected from platinum group metals and a second metal suitable for making such alloys. An important feature of the present invention is the use of vaporised alkali metal to promote the reduction of the second metal during the alloying process.
(FR)
La présente invention concerne un procédé de production de nanoparticules d'alliage métallique qui catalysent la réaction de réduction d'oxygène (ORR) pour une utilisation dans des piles à combustible à membrane échangeuse de protons (PEMFC) ou des cellules d'électrolyseur. En particulier, la présente invention concerne la production de nanoparticules constituées d'alliages d'un premier métal choisi parmi les métaux du groupe du platine et d'un second métal approprié pour la fabrication de tels alliages. Une caractéristique importante de la présente invention est l'utilisation de métal alcalin vaporisé pour favoriser la réduction du second métal pendant le processus de préparation d'alliage.
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