4.8 Article

Cover Picture: Operando Spectroscopy Unveils the Catalytic Role of Different Palladium Oxidation States in CO Oxidation on Pd/CeO2 Catalysts (Angew. Chem. Int. Ed. 23/2022)

Journal

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 61, Issue 23, Pages -

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202206435

Keywords

CO Oxidation; Ceria; NAP-XPS; Operando DRIFTS; Structure-Activity Relationships

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The dynamic behavior of ceria-supported Pd single atoms, clusters, and nanoparticles during CO oxidation was investigated using operando spectroscopy. The catalytic role of different Pd species was elucidated through a combination of in situ spectroscopy with transient and steady-state kinetic analysis, revealing that highly dispersed Pd-oxo species and interfacial Pd sites catalyze low-temperature CO oxidation, while metallic Pd contributes to the activity at elevated temperature.
Operando spectroscopy captures the dynamic behavior of ceria-supported Pd single atoms, clusters, and nanoparticles during CO oxidation. In their Research Article (e202200434), Emiel J. M. Hensen et al. elucidate the catalytic role of different Pd species using a combination of in situ spectroscopy with transient and steady-state kinetic analysis. Highly dispersed Pd-oxo species and interfacial Pd sites catalyze low-temperature CO oxidation, while metallic Pd contributes to the activity at elevated temperature.

Authors

Anonymous

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