In situ tracing of atom migration in Pt/NiPt hollow spheres during catalysis of CO oxidation†
Abstract
NiPt hollow spheres decorated by Pt nanoparticles were synthesized by a facile wet chemical route through galvanic replacement. In situ STEM imaging and 3D reconstruction were performed to evidence the migration of Pt atoms during catalysis of CO oxidation, providing a practical insight into the structural stability of bimetallic catalysts.
- This article is part of the themed collection: Structure and Catalyst Particles from In-situ Electron Microscopy