LOW-FREQUENCY IMPEDANCE OF DISPERSED PARTICLES NEAR AN ELECTRODE

If the diffusion coefficients of ions are unequal, concentration polar ization of particles is accompanied by the appearance of diffusion pot ential arising from the polarization charges emerging in the range of action of the concentration dipole. In the case of particles located s ufficiently close to an electrode, some of these polarization charges emerge on the latter, thus resulting in the additional contribution fr om dispersed particles to the current and conductivity of a disperse s ystem. Quantitative estimation of this effect is given.