Journal article · Conference paper
Electron beam effects in high-resolution transmission electron microscopy investigations of catalytic nanoparticles
National Centre for Nano Fabrication and Characterization, Technical University of Denmark1
Nanocharacterization, National Centre for Nano Fabrication and Characterization, Technical University of Denmark2
Atomic-scale Materials Dynamics, Nanocharacterization, National Centre for Nano Fabrication and Characterization, Technical University of Denmark3
Department of Physics, Technical University of Denmark4
Computational Atomic-scale Materials Design, Department of Physics, Technical University of Denmark5
Center for Nanostructured Graphene, Centers, Technical University of Denmark6
High-resolution transmission electron microscopy (HRTEM) is a powerful tool for atomic scale investigations of catalytic nanoparticles. The dynamics of such catalytic nanoparticles are highly dependent on the environment: temperature, reactant gases and reactor pressure. It is possible to imitate such conditions in a transmission electron microscope (TEM).
Electron beam effects play a substantial role in the interpretation of data produced in TEM investigations. There is a trade-off between optimal signal-to-noise ratio (SNR) and minimal beam damage. The current model system consists of gold nanoparticles supported on cerium dioxide. The aforementioned studies elucidate how the nanoparticles undergo changes with observation time and reactant gases present, and surface events as function of dose rate, respectively.
| Language: | English |
|---|---|
| Publisher: | Cambridge University Press |
| Year: | 2021 |
| Pages: | 3348-3349 |
| ISSN: | 14358115 and 14319276 |
| Types: | Journal article and Conference paper |
| DOI: | 10.1017/S143192762101151X |
| ORCIDs: | Lomholdt, William Bang , Leth Larsen, Matthew Helmi , Núñez Valencia, Cuauhtémoc , Schiøtz, Jakob and Hansen, Thomas |
