In situ Synthesis of Pt-rare Earth Alloy Nanoparticles

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Abstract

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.
Original languageEnglish
JournalMicroscopy and Microanalysis
Volume27
Issue numberS2
Pages (from-to)97-98
ISSN1431-9276
DOIs
Publication statusPublished - 2021
Event5th International Conference on In-Situ an Correlative Electron Microscopy - Paris, France
Duration: 8 Sept 202110 Sept 2021
Conference number: 5

Conference

Conference5th International Conference on In-Situ an Correlative Electron Microscopy
Number5
Country/TerritoryFrance
CityParis
Period08/09/202110/09/2021

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