Single-atom platinum-decorated cerium oxide as nanozymes for biological applications

We propose to investigate the role of Pt in the single-atom platinum-decorated cerium oxide nanoparticles as nanozymes. The objective is to characterize the local geometry of Pt species and the interaction between atomically dispersed Pt and CeO2. By measuring XANES and EXAFS at the Ce L3 and Pt L3 edges, we will study the coordination environment (geometry, oxidation states) of Pt to understand its interaction with the support as the active redox sites within the enzyme-mimetic application.