WebJan 1, 2009 · The concept of the existence of the double layer at the surface of a metal being in contact with an electrolyte appeared in 1879 (Helmholtz). That first theoretical model assumed the presence of a compact layer of ions in contact with the charged metal surface. The next model, of Gouy and Chapman, involves a diffuse double layer in … WebAccording to the Gouy-Chapman model [8], the capacitance of the EDLC with a fully dissociated, symmetric 1:1 salt at low applied voltages (VF=RT ( 1) is C ¼ Ae=k D , analogous to the capacitance ...
(PDF) Impact of Gouy-Chapman-Stern model on conventional …
WebUntil recently the theoretical description of the double layer formed on planar interfaces has been based entirely on the theory of Gouy-Chapman (5, 7, 13). It is well known that this … WebNov 1, 2012 · In the present study, the three-phase contact angle (TPCA) on silica is measured as a function of the pH. The surface potential and surface charge density at the silica/water surface are calculated by a model based on the Young–Lippmann equation in conjunction with the Gouy–Chapman model for the electric double layer. egyptian goddess known for her magic
Electric Double Layer - an overview ScienceDirect Topics
WebJan 20, 2024 · The Gouy-Chapman theory describes how this charge is distributed exactly. Theory does not match reality. But Marc Koper, Professor of Catalysis and Surface Chemistry, together with researcher ... Gouy–Chapman. Louis Georges Gouy in 1910 and David Leonard Chapman in 1913 both observed that capacitance was not a constant and that it depended on the applied potential and the ionic concentration. The "Gouy–Chapman model" made significant improvements by introducing a diffuse model of the DL. See more In surface science, a double layer (DL, also called an electrical double layer, EDL) is a structure that appears on the surface of an object when it is exposed to a fluid. The object might be a solid particle, a gas bubble, a liquid See more Helmholtz When an electronic conductor is brought in contact with a solid or liquid ionic conductor (electrolyte), a common boundary ( See more The electrical double layer (EDL) is the result of the variation of electric potential near a surface, and has a significant influence on the behaviour of colloids and other surfaces in contact with solutions or solid-state fast ion conductors. The primary … See more • Stillinger, Frank H.; Kirkwood, John G. (1960). "Theory of the Diffuse Double Layer". The Journal of Chemical Physics. 33 (5): 1282–1290. See more There are detailed descriptions of the interfacial DL in many books on colloid and interface science and microscale fluid transport. There is also a recent IUPAC technical report on … See more • Depletion region (structure of semiconductor junction) • DLVO theory • Electroosmotic pump See more • The Electrical Double Layer See more WebJan 1, 2016 · Gouy-Chapman theory (Gouy, 1910; Chapman, 1913) is an electrostatic model of the spatial distribution of ions adsorbed, but not immobilized, by a charged … folding sports wagon cart