SINGLE‐ATOM MOVEMENT: Dynamics of Polar Surfaces on Ceria Nanoparticles Observed In Situ with Single‐Atom Resolution (Adv. Funct. Mater. 11/2011)

Observing the movements of single atoms at the surface of a solid is one of the ultimate goals of microscopy. On page 1971, Günter Möbus and co-workers use atomic-resolution aberration-corrected transmission electron microscopy to monitor the inherent instability of CeO2 (100) surface facets of a nanoparticle. The image series shows a hopping sequence of Ce atoms. Catalysis and other surfaceactivity-related application fields of ceria will benefit from this study.