Structure control and evolution of atomically precise gold clusters as heterogeneous precatalysts

Area of Science:

• Catalysis
• Materials Science
• Nanotechnology

Background:

• Metal clusters exhibit unique catalytic properties distinct from single atoms and nanoparticles.
• Catalyst structure ambiguity and metal species evolution pose challenges for mechanistic studies.
• Atomically precise metal nanoclusters provide well-defined pre-catalysts for heterogeneous reactions.

Purpose of the Study:

• To review recent advances in heterogeneous catalysts using atomically precise gold and alloy gold nanoclusters as precursors.
• To discuss the structural design of nanoclusters and support materials for enhanced catalyst performance.
• To highlight strategies for controlling structural evolution during catalyst fabrication and reaction.

Main Methods:

• Summarizing recent developments in atomically precise nanocluster synthesis and characterization.
• Analyzing the impact of ligand modification, support interactions, and heteroatom incorporation on nanocluster properties.
• Reviewing fabrication techniques for nanocluster/support hybrids, including NCs@MOF structures.

Main Results:

• Atomically precise nanoclusters enable precise control over catalyst structure and composition.
• Ligand modification, support interactions, and heteroatom introduction significantly influence catalytic activity and stability.
• NCs@MOF hybrids effectively prevent adverse structural evolution of nanoclusters.

Conclusions:

• Atomically precise metal nanoclusters are promising precursors for advanced heterogeneous catalysts.
• Understanding structure-activity relationships is crucial for designing high-performance catalysts.
• Future catalyst design strategies should leverage the precise control offered by atomically precise nanoclusters.