Platinum-Based Nanocatalysts for Proton Exchange Membrane Fuel Cells
Licentiatavhandling, 2023
This thesis investigates the use of sputtering onto liquid (SoL) substrates as a potential synthesis method for Pt-RE nanocatalysts. The influence of sputtering parameters, including substrate type and temperature, as well as gas environment, on the size and morphology of platinum-based nanocatalysts are studied. Transmission electron microscopy of platinum sputtered in four different liquids indicates that the size of the nanoparticles is only weakly dependent on temperature. Furthermore, catalyst layers fabricated from the SoL-synthesized nanocatalysts are evaluated in a half cell setup. The electrochemical results shows that high performing catalyst layer fabrication from SoL-synthesized nanoparticles is viable, which opens for further development of the technique.
Fuel cells
Sputtering onto liquids
Pt-RE nanocatalysts
Författare
Björn Lönn
Chalmers, Fysik, Kemisk fysik
Plasma-Induced Heating Effects on Platinum Nanoparticle Size during Sputter Deposition Synthesis in Polymer and Ionic Liquid Substrates
Langmuir,;Vol. 37(2021)p. 8821-8828
Artikel i vetenskaplig tidskrift
Lönn, B., Luneau, M., Wicman, B. Platinum Nanoparticle Fuel Cell Catalyst Layers Synthesized by Sputtering onto Liquid Substrates
Innovativa legeringsnanopartiklar som bränslecellskatalysatorer för att möjliggöra ett hållbart energisystem
Energimyndigheten (48613-1), 2020-01-01 -- 2024-12-31.
Ämneskategorier
Fysikalisk kemi
Nanoteknik
Organisk kemi
Den kondenserade materiens fysik
Infrastruktur
Chalmers materialanalyslaboratorium
Utgivare
Chalmers
PJ seminar room, Fysik Origo, Kemivägen 1
Opponent: Dr. Per Hanarp, Volvo Group Trucks Technology, Sweden