Fig. 1: Schematic of bipolar C2H4 electrosynthesis system.

a Schematic of a renewable energy-driven bipolar C2H4 electrosynthesis system from two wastes, CO2 and PA, by pairing electrocatalytic CO2 reduction and PA decarboxylation. b Possible reaction pathways of PA decarboxylation in alkaline solution. c Anode electrocatalyst screening for PA decarboxylation toward C2H4. Source data are provided as a Source data file.