Chapter 4
charge and potential distribution are determined by the geometrical restrictions of
ion and molecule size and interactions between ions and solid surface; 2) diffuse
layer where the potential distribution can be predicted by Poisson-Boltzmann
equation, as shown in Figure 4.14 [16].
The distance between solid surface and inner Helmholtz Plane is b. The
distance between inner and outer Helmholtz Plane is d. Solid surface has surface
charge density σs and potential ψs. The Inner Helmholtz Plane (IHP) has potential
ψi. Stern layer has charge density σi. The Outer Helmholtz Plane (OHP) has
surface potential ψd. Charge density of diffuse layer is σ<j.
IHP OHP
IlO