Ultrafast Synthesis of Single-Atom Catalysts for Electrocatalytic Applications

Area of Science:

• Catalysis
• Materials Science
• Electrochemistry

Background:

• Single-atom catalysts (SACs) are crucial in catalysis but prone to atom migration and aggregation during synthesis due to high surface energy.
• Conventional synthesis methods struggle to maintain atomic dispersion, limiting SAC performance and stability.

Purpose of the Study:

• To review and analyze cutting-edge ultrafast synthesis techniques for preparing stable single-atom catalysts.
• To highlight the application of these rapidly synthesized SACs in key electrocatalytic reactions.

Main Methods:

• Analysis of rapid thermal shock strategies, including Joule heating, microwave radiation, pulsed discharge, and arc discharge.
• Focus on minimizing heating duration to prevent metal aggregation and substrate degradation.
• Emphasis on achieving uniform dispersion of individual metal atoms.

Main Results:

• Ultrafast synthesis methods effectively prevent atom agglomeration, preserving atomic-level dispersion.
• Resultant SACs demonstrate exceptional catalytic activity, selectivity, and long-term stability.
• Successful application of rapidly synthesized SACs in CO2RR, OER, HER, and ORR.

Conclusions:

• Rapid thermal shock synthesis is a promising strategy for developing high-performance single-atom catalysts.
• Further research into development trends, challenges, and application prospects of these SACs is warranted.
• These advanced catalysts hold significant potential for various electrocatalytic applications.