Reductant composition influences the coordination of atomically dispersed Rh on anatase TiO2

Abstract

Atomically dispersed noble metal catalysts have received recent interest, although the coordination of the metal to the support and how this is influenced by pre-treatment have not often been elucidated. We combine CO FTIR-TPD and DFT to distinguish how catalyst reduction via CO or H₂ influence the local metal coordination and molecular desorption processes.