Ionic transport and membrane potential in porous media with interfacial charges
β Scribed by Pabitra N. Sen
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 491 KB
- Volume
- 157
- Category
- Article
- ISSN
- 0378-4371
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β¦ Synopsis
Invited paper
Electrical conductivity CT of a porous medium, in which the pore-walls carry an electric double layer, is shown to be a nonlinear function of the electrolyte conductivity rr,. which fills the pores. As oW increases, dominant current paths shift from surface to pore and therefore are subjected to different tortuosities.
(r is shown to be a superposition of cation and anion conductivities
π SIMILAR VOLUMES
Ionic diffusivity, electrical conductivity, membrane and thermoelectric potentials in isotropic and homogeneous colloidal suspensions, and granular porous media saturated by a binary symmetric 1:1 electrolyte are four interrelated phenomena. The microstructure and the surface properties of the solid
We extend the model of a mixed ionic electronic conductor (MIEC) oxygen perm-selective solid oxide membrane with porous electrodes, previously treated in the limit of small pressure gradient, to the case of arbitrary pressure gradient. The model is based on the assumption that the oxygen vacancy con