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Tandem Gas-Diffusion Electrodes for C2+

A structured Cu–Ag bilayer that decouples CO generation from C–C coupling.

The problem

Copper is the only metal that couples CO₂ to multicarbon products, but it wastes current on hydrogen and CO.

The approach

Pair a CO-generating silver layer with a coupling-optimized copper layer across a tuned gas-diffusion electrode.

Key results

74% C2+ Faradaic efficiency at 300 mA cm⁻², sustained over 200 hours.

74%
C2+ Faradaic efficiency
300
mA cm⁻²
200 h
stable operation
§ Related

Publications from this project