2D monolayer electrocatalysts for CO₂ electroreduction.

Area of Science:

• Materials Science
• Electrochemistry
• Catalysis

Background:

• Electrocatalytic carbon dioxide reduction (CO2RR) converts CO2 into chemicals/fuels.
• Current CO2RR methods face efficiency and durability limitations.
• Nanoscale and atomic-scale catalysts are key to improving CO2RR.

Purpose of the Study:

• To review 2D monolayer catalysts for electrocatalytic CO2RR.
• To discuss various types of 2D monolayer electrocatalysts.
• To highlight challenges and opportunities in 2D monolayer CO2RR.

Main Methods:

• Systematic overview of 2D monolayer catalyst development.
• Analysis of CO2RR technology and catalyst performance.
• Discussion of material synthesis and application challenges.

Main Results:

• 2D monolayer materials offer unique advantages for CO2RR (e.g., uniform active sites, low mass transfer resistance).
• Various 2D monolayer catalysts (graphene-based, MOFs, COFs, metal-based) were analyzed.
• Key challenges include achieving high-quality materials and selective multi-carbon product formation.

Conclusions:

• 2D monolayer catalysts hold significant potential for efficient CO2RR.
• Overcoming synthesis and selectivity challenges is crucial for practical application.
• Further research is needed to advance 2D monolayer electrocatalysts for CO2RR.