A Functionalized Heterogeneous Catalyst from Atomically Precise Pd₁ Au₈ Clusters Facilitates Carbon-Carbon Bond...

Area of Science:

• Catalysis
• Materials Science
• Nanotechnology

Background:

• Atomically precise metal clusters offer tunable properties for catalysis.
• Bridging homogeneous and heterogeneous catalysis remains a key challenge.

Purpose of the Study:

• Investigate the cooperative effect of Pd and Au in Pd1Au8 clusters for Suzuki-Miyaura coupling.
• Develop a recyclable heterogeneous catalyst using these clusters.

Main Methods:

• Synthesis of atomically precise Pd1Au8 clusters.
• Immobilization of clusters onto a porous resin support (@Resin).
• Evaluation of catalytic performance in Suzuki-Miyaura cross-coupling reactions.

Main Results:

• Identified the crucial role of central Pd and peripheral Au atoms in catalytic efficiency.
• Achieved catalyst recyclability in batch reactors.
• Demonstrated stable time-on-stream performance in fixed-bed reactors.

Conclusions:

• Atomically precise Pd1Au8 clusters can be effectively used as heterogeneous catalysts.
• This approach integrates benefits of both homogeneous and heterogeneous catalysis.
• Facilitates important bond constructions with enhanced usability.