Chapter 4
The equations for Gouy-Stern-Grahame model are as follows:[16L [17]
σs+σi+σd=0 [4.1]
ψs~ψi=- [4.2]
εb
Vi-Vd=2-^- [4-3]
εd
σd = -sign(σd){2^T^ς0[exp(-zi.e^∕^T)-l]}ιz2 [4.4]
i
b and d: thickness of compact layer and diffuse layer.
σs, σ∣ and σd: charge density of solid surface, Stern layer and diffuse layer.
ψs, ψ∣ and ψd: potential of solid surface, IHP and OHP.
εb and εd: permittivity in compact layer and diffuse layer.
z∣: valency of ion species.
ε: permittivity of bulk solution.
C∕°: concentration of ion species i in the bulk.
Gouy-Stern-Grahame model can be simplified if making assumptions are
made.
1) The shear surface coincides with the Outer Helmholtz Plane (OHP), thus
zeta potential ζ = ψd.
2) The charge of solids surface and Stern layer are combined into net
surface charge, σo = σs + σ,.
Ill
More intriguing information
1. Optimal Vehicle Size, Haulage Length, and the Structure of Transport Costs2. Ahorro y crecimiento: alguna evidencia para la economía argentina, 1970-2004
3. Luce Irigaray and divine matter
4. The name is absent
5. The name is absent
6. The name is absent
7. The Tangible Contribution of R&D Spending Foreign-Owned Plants to a Host Region: a Plant Level Study of the Irish Manufacturing Sector (1980-1996)
8. The name is absent
9. The name is absent
10. A production model and maintenance planning model for the process industry