Single-atom Zr promoter boosts oxygen activation on ceria-supported Pt catalysts.

ABSTRACT: Activation of surface lattice oxygen and chemisorbed oxygen on catalyst surfaces constitutes a pivotal step in heterogeneous oxidative catalysis. Herein, we report a strategy for enhancing oxygen activation by rational design of catalysts with single-atom promoters. Single-site Zr species in CeO₂ (Zr₁-CeO₂) are synthesized using the atom-trapping method. The Zr₁-CeO₂-supported Pt catalyst exhibits enhanced catalytic performance over the CeO₂-supported Pt catalyst in the oxidation of CO, C₃H₈, and C₃H₆, achieving significantly lower T₅₀ values (temperature required to reach 50% conversion). This enhanced catalytic activity is attributed to the formation of an asymmetric Z

SUBMITTER: Huang W 

PROVIDER: S-EPMC12332069 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature