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Dynamic control and quantification of active sites on ceria for CO activation and hydrogenation.

Nat Commun

November 2024

School of Physical Science and Technology, Center for Transformative Science, ShanghaiTech University, Shanghai, China.

Article Synopsis
  • Ceria (CeO) is a key oxide catalyst, but understanding its active sites has been challenging; this study explores its structure-activity relationships for CO activation and hydrogenation.
  • Researchers created well-defined ceria clusters on CeO(111), showing that reduced clusters have strong CO binding while near-stoichiometric clusters facilitate oxidation.
  • Findings suggest that supported ceria clusters are more dynamic and active, providing a new way to identify and optimize active sites, advancing the design of ceria catalysts for syngas conversion.
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