At -0.04 V, the angles in Figures and show one-H-down water characteristics, but also water parallel to the surface is present. At potentials higher than the PZC (0.76 V), the water molecules orient O-down and also toward the potassium ion, which is why we observe this peak at 90 • ; the γ distribution shows two broad peaks at 70 • and 140 • . This behavior is not strongly present for the LiOH, Li and K simulations, where we only observe the reorientation of the water molecules. The ion position is always around 8-10 Å for the surface (see distribution profile in the previous section), so the ionic distance influences the strong reorientation of the water molecules in the KOH simulation.