Conference paper · Journal article
In situ Synthesis of Pt-rare Earth Alloy Nanoparticles
National Centre for Nano Fabrication and Characterization, Technical University of Denmark1
Atomic-scale Materials Dynamics, Nanocharacterization, National Centre for Nano Fabrication and Characterization, Technical University of Denmark2
Department of Energy Conversion and Storage, Technical University of Denmark3
Nanocharacterization, National Centre for Nano Fabrication and Characterization, Technical University of Denmark4
Center for Nanostructured Graphene, Centers, Technical University of Denmark5
Summary form only given. In this work, we investigated the synthesis process of Pt5Ce alloy nanoparticles at atomic scale using in situ ETEM. The in situ synthesis experiments were performed on an FEI Titan 80-300 environmental transmission electron microscope (ETEM) equipped with a spherical aberration corrector (CEOS).
The microscope was operated at 300 kV. A DENS solutions wildfire heating chip was used to hold the precursors to proceed with the synthesis. Preliminary results (Figure 1) show Pt5Ce alloy nanoparticles were successfully formed in the ETEM in 2.6 mbar H2 at 550 oC. The red arrow in Figure 1a denotes the (111) plane of pure Pt, while the yellow arrow in Figure 1b indicates the (100) plane of Pt5Ce.
Figure 2 shows the evolution of a PtxCe alloy nanoparticle during the synthesis process.
| Language: | English |
|---|---|
| Publisher: | Cambridge University Press |
| Year: | 2021 |
| Pages: | 97-98 |
| Proceedings: | 5th International Conference on In-Situ an Correlative Electron Microscopy |
| ISSN: | 14358115 and 14319276 |
| Types: | Conference paper and Journal article |
| DOI: | 10.1017/S1431927621013489 |
| ORCIDs: | Liu, Pei , Hu, Yang and Hansen, Thomas Willum |
