title: 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.
authors.affiliation: Department of Physics, Beijing University of Aeronautics and Astronautics, Beijing 100191, P. R. China. rmwang@buaa.edu.cn.
authors.forename: Jialong
authors.initials: J
authors.lastname: Liu
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.forename: Qian
authors.initials: Q
authors.lastname: Sun
authors.forename: Shouguo
authors.initials: S
authors.lastname: Wang
authors.forename: Kai
authors.initials: K
authors.lastname: Sun
authors.forename: Johannes
authors.initials: J
authors.lastname: Schwank
authors.forename: Rongming
authors.initials: R
authors.lastname: Wang