In situ X-ray imaging of segregation and mixing in PtPd core–shell nanoparticles under methane oxidation conditions

Puntos clave

• This research aims to understand how temperature influences the distribution of elements in core-shell nanoparticles during methane oxidation.
• Utilized in situ X-ray imaging techniques
• Employed Bragg coherent diffraction imaging (BCDI)
• Studied the effect of temperature on elemental distribution
• Tracked strain and compositional changes during methane oxidation
• Elemental distribution shifted from core-shell to partially alloyed under different temperatures
• Observed significant changes in strain during the reaction
• Identified dynamic compositional evolution in real-time during methane oxidation