Potassium Titanate Supported Atomically Dispersed Palladium for Catalytic Oxidation

Single‐atom catalysts based on noble metals provide efficient atomic utilization along with enhanced reactivity. Herein, a convenient strategy to construct atomically dispersed palladium catalyst on layered potassium titanate (KTO), which has enhanced interaction between the TiO6 layer and the palla...

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Bibliographic Details
Published in:Advanced science 2023-01, Vol.10 (2), p.e2204674-n/a
Main Authors: Zhou, Li, He, Shuren, Xu, Xiaohong, Li, Guangwu, Jia, Chuancheng
Format: Article
Language:English
Subjects:
Adsorption
Catalytic oxidation
Metal oxides
metal–support interaction
Nanowires
palladium
Potassium
potassium titanate
single‐atom catalyst
Spectrum analysis
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Summary:Single‐atom catalysts based on noble metals provide efficient atomic utilization along with enhanced reactivity. Herein, a convenient strategy to construct atomically dispersed palladium catalyst on layered potassium titanate (KTO), which has enhanced interaction between the TiO6 layer and the palladium atoms, is presented. Due to the presence of K+ ions in the interlayers of KTO, the TiO6 octahedron layers have negative charge, which increases the interaction between Pd atoms and the substrate, thus preventing their agglomeration. In addition, the provision of charge of K+ ion makes the molecular oxygen in the system easier to be activated and promotes catalytic oxidation activity. Due to the presence of K+ ions in the interlayers of potassium titanate, the TiO6 octahedron layers have negative charge, which is conducive to the atomic dispersion of Pd and the formation of oxygen vacancies. The atomically dispersed palladium catalyst shows enhanced catalytic performance and catalytic stability for room‐temperature catalytic oxidation.
ISSN:2198-3844
2198-3844
DOI:10.1002/advs.202204674