Abstract
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.
| Original language | English |
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| IPC | H01M 8/ 00 A I |
| Patent number | WO2020065053 |
| Filing date | 27/09/2019 |
| Country/Territory | International Bureau of the World Intellectual Property Organization (WIPO) |
| Priority date | 28/09/2018 |
| Priority number | EP20180197633 |
| Publication status | Published - 2 Apr 2020 |