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Perspective: Size selected clusters for catalysis and electrochemistry.

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Size-selected atomic clusters exhibit unique catalytic properties, differing from larger nanoparticles. Understanding cluster size, composition, and support interactions is key to controlling catalyst performance in reactions.

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Area of Science:

  • Catalysis science
  • Materials science
  • Surface science

Background:

  • Atomic clusters, with few atoms, show distinct catalytic properties compared to bulk materials.
  • These clusters serve as atomic-scale models for catalytic active sites, where single atom changes impact performance.

Purpose of the Study:

  • To review studies on supported size-selected clusters in heterogeneous and electrochemical catalysis.
  • To analyze the influence of cluster size, composition, support interactions, and reaction conditions on catalyst functionality.

Main Methods:

  • Experimental studies under ultra-high vacuum and realistic reaction conditions.
  • Computational modeling, including density functional theory and ab initio molecular dynamics.
  • Characterization of supported size-selected clusters.

Main Results:

  • Demonstrated unique catalytic properties of size-selected atomic clusters.
  • Highlighted the critical role of cluster size, composition, and support interactions.
  • Showcased computational modeling's contribution to understanding and predicting catalytic behavior.

Conclusions:

  • Size-selected clusters offer tunable catalytic properties for various reactions.
  • Integrated experimental and computational approaches are essential for catalyst design.
  • Strategies for scaling up cluster production for practical applications are discussed.