Electrocatalytic CO₂ Reduction over Atomically Precise Metal Nanoclusters Protected by Organic Ligands

Area of Science:

• Electrochemistry
• Materials Science
• Catalysis

Background:

• Electrochemical carbon dioxide reduction reaction (CO2RR) is key for carbon recycling and sustainable fuel production.
• Understanding CO2RR mechanisms is challenging due to complex traditional catalyst surfaces.
• Organic ligand-protected metal nanoclusters (NCs) offer precise structures for mechanistic studies.

Purpose of the Study:

• To review recent advancements in CO2RR catalyzed by atomically precise metal NCs.
• To elucidate the influence of NC properties (charge, ligand, structure, doping, binders) on CO2RR.
• To discuss reaction mechanisms, active sites, and key intermediates in CO2RR.

Main Methods:

• Focus on reviews of gold, copper, and silver NCs in CO2RR.
• Detailed analysis of factors affecting CO2RR performance.
• Exploration of reaction pathways and intermediate species.

Main Results:

• Metal NCs provide precise control over composition and structure for mechanistic insights.
• Specific factors like charge, ligands, and surface structure significantly impact CO2RR.
• Identification of active sites and intermediates is facilitated by NCs.

Conclusions:

• Atomically precise metal NCs are crucial for deciphering CO2RR mechanisms.
• This research promotes the development of advanced metal NC catalysts for CO2RR.
• Progress in NCs and CO2RR contributes to carbon recycling and sustainable chemistry.