Atomically Precise Defective Copper Nanocluster Catalysts for Highly Selective C-C Cross-Coupling Reactions

Area of Science:

• Nanomaterials Science
• Catalysis
• Defect Engineering

Background:

• Point defects in nanoparticles are crucial for electronic and physicochemical properties.
• Existing material systems often have complex heterogeneities, masking the role of single defects.

Purpose of the Study:

• To synthesize atomically precise copper hydride nanoclusters with defined defects.
• To investigate the catalytic activity of these defective nanoclusters.
• To establish defective nanoclusters as model systems for defect studies.

Main Methods:

• One-pot reduction method for synthesizing gram-scale, atomically precise copper hydride nanoclusters ([Cu28H10(C7H7S)18(TPP)3]).
• Characterization of the nanocluster structure and defect sites.
• Evaluation of catalytic performance in C-C cross-coupling reactions.

Main Results:

• Successful synthesis of novel, atomically precise copper hydride nanoclusters (Cu28) with a defined defect.
• The synthesized Cu28 nanoclusters demonstrated high selectivity as catalysts in C-C cross-coupling reactions.
• Established a gram-scale synthesis route for defective nanoclusters.

Conclusions:

• Defective nanoclusters can serve as valuable model systems for understanding individual point defects.
• Correlating specific defects with physiochemical properties is achievable.
• This work paves the way for the rational design of novel nanoparticle catalysts based on defect engineering.