Chunlei Wang, Panukorn Sombut, Lena Puntscher, Zdenek Jakub, Matthias Meier, Jiri Pavelec, Roland Bliem, Michael Schmid, Ulrike Diebold, Cesare Franchini, Gareth Steven Parkinson
The ability to coordinate multiple reactants at the same active site is important for the wide-spread applicability of single-atom catalysis. Model catalysts are ideal to investigate the link between active site geometry and reactant binding, because the structure of single-crystal surfaces can be precisely determined, the adsorbates imaged by scanning tunneling microscopy (STM), and direct comparisons made to density functional theory. In this study, we follow the evolution of Rh1 adatoms and minority Rh2 dimers on Fe3O4(001) during exposure to CO using time-lapse STM at room temperature...
January 31, 2024: Angewandte Chemie