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Pt Nanoparticle Disintegration at Oxide Interfaces Enhances CO Oxidation Catalysis

open access: yesSmall, EarlyView.
Supported Pt nanoparticles on TiO2 dynamically disintegrate during CO oxidation into single atoms or clusters at CeOx‐TiO2 interfaces, tripling the specific mass activity at 150 °C. Pt‐CO interactions weaken Pt─Pt bonds, while electronic Pt‐Ce coupling stabilizes Pt‐CO* at interfaces. Oxygen vacancies trap Pt‐CO*, but O2 regenerates the vacancy, paving
Eunji Kang   +13 more
wiley   +1 more source

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