Structural evolution of nanoparticles under realistic conditions observed with Bragg coherent X-ray imaging
Résumé
The advent of the world’s first coherent hard X-ray sources represents an unprecedented opportunity to conduct in situ and operando studies on the structure of nanoparticles in reactive liquid or gas environments in synchrotrons.
In this talk, I will illustrate how Bragg coherent X-ray imaging [1] allows to image in three dimensions (3D) and at the nanoscale the strain and defect dynamics inside nanoparticles as well as their refaceting during catalytic reactions [2–5]. I will also highlight the potential of machine learning to predict characteristic structural features in nanocrystals just from their 3D Bragg coherent diffraction patterns [6]
Domaines
MatériauxOrigine | Fichiers éditeurs autorisés sur une archive ouverte |
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