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.
该工作作为封面发表在ChemComm上（Chem. Commun.,2014, 50, 1804. DOI: 10.1039/c3cc47772j）