Fig. 1: Helicene enantiomer functionalization effect on the OER activity.

OER activity of a (P)-thiadiazole-[7]helicene embedded NiO_x electrodes, b (M)-thiadiazole-[7]helicene embedded NiO_x electrodes, and c (P)-thiadiazole-[7]helicene functionalized Au(111) in 0.1 M O₂-saturated KOH. Source data are provided as a Source Data file.