Fig. 5: Substrate scope for cyclic carbonate electrosynthesis.

Average indirect Faradaic efficiency values for the corresponding cyclic carbonate synthesized from five different vicinal halohydrins (2-chloroethanol, 1-chloro-2-propanol, 1-chloro-2-methyl-2-propanol, 2,3-dichloro-1-propanol, 1,3-dichloro-2-propanol). Each substrate underwent reaction either in the halohydrin solvent itself or by adding it as a 1.0 M reactant in acetonitrile solvent. Acetonitrile solvent was used to improve CO2 mass transportation in the catholyte by decreasing solvent viscosity. Each point was repeatedly measured three times. Source data for Fig. 5 are provided as a Source Data file.