3D dynamic structure of a Pt nanoparticle on SrTiO₃ (001) during in-situ heating atomic-resolution ADF STEM imaging.

ABSTRACT: Noble metal nanoparticles supported on semiconducting substrates have long been used in heterogeneous catalysis. A central objective in this field is to identify the active sites for catalysis, which requires precise determination of the 3D atomic structure of nanoparticles on substrates. Furthermore, it has widely accepted that catalytic active sites undergo dynamic structural changes under reaction conditions. However, direct observation of such 3D dynamic structures at the atomic scale, particularly under elevated temperatures and reducing environments, remains a challenge. Here, we present the 3D atomic structure of an epitaxially grown platinum nanoparticle, consisting of 263 Pt atomic sites, supported on an atomically flat SrTiO₃ (001) surface, using single-projection atom

SUBMITTER: Ishikawa R 

PROVIDER: S-EPMC12949182 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature