A single site ruthenium catalyst for robust soot oxidation without platinum or palladium.

ABSTRACT: The quest for efficient non-Pt/Pd catalysts has proved to be a formidable challenge for auto-exhaust purification. Herein, we present an approach to construct a robust catalyst by embedding single-atom Ru sites onto the surface of CeO₂ through a gas bubbling-assisted membrane deposition method. The formed single-atom Ru sites, which occupy surface lattice sites of CeO₂, can improve activation efficiency for NO and O₂. Remarkably, the Ru₁/CeO₂ catalyst exhibits exceptional catalytic performance and stability during auto-exhaust carbon particle oxidation (soot), rivaling commercial Pt-based catalysts. The turnover frequency (0.218 h^-1) is a nine-fold increase relative to the Ru nanoparticle catalyst. We further show that the s

SUBMITTER: Li Y 

PROVIDER: S-EPMC10628289 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature