Electrocatalytic CO₂ Reduction to C₂₊ Products in Flow Cells

Area of Science:

• Electrochemistry
• Catalysis
• Chemical Engineering

Background:

• Electrocatalytic CO2 reduction (CO2 RR) is crucial for sustainable energy and mitigating carbon emissions.
• Traditional H-type cells face limitations in current density and CO2 mass transfer for industrial use.
• Flow cells offer enhanced performance with higher current densities and improved CO2 mass transfer.

Purpose of the Study:

• To review the advancements in flow cells for CO2 RR, specifically for C2+ product generation.
• To outline the development of flow cells for CO2 RR.
• To summarize design principles, architectures, and types of flow cells for CO2 RR.

Main Methods:

• Review of existing literature on flow cells for CO2 RR.
• Analysis of design principles for C2+ product formation.
• Summary of optimization strategies for cathode, anode, ion exchange membrane, and electrolyte.

Main Results:

• Flow cells demonstrate significant potential for industrial CO2 RR due to improved efficiency.
• Optimization strategies for various cell components are detailed.
• Progress in generating C2+ products via electrocatalytic CO2 reduction in flow cells is highlighted.

Conclusions:

• Flow cells are vital for the industrialization of electrocatalytic CO2 reduction.
• Further research and optimization are needed to overcome current challenges.
• Flow cells hold promise for efficient CO2 conversion to valuable fuels and chemicals.