The calculated average electrostatic potential profiles of the simulations are displayed in In the metal electrode region, the saddle height between the second and the third atomic layer is different as these atoms are directly in contact with the electrolyte and the first two gold layers have been fixed in their bulk position. The potential well of the first water layer in the Stern region decreases its depth and broadens with increasing potentials in all the systems. The water molecules present in the first layer from the surface re-orient their dipole with the electric field and these water molecules are far away from the ions (see Sec.