Figure 29.

Diffusion of ions in nanopores. (a) Cation self-diffusion coefficient along the equilibrium path and along the path corresponding to the step-voltage charging. The diffusion coefficient is expressed in terms of the diffusion coefficient of a neutral bulk system (D_bulk). Blue and orange spheres in the insets denote cations and anions. Reproduced with permission from ref (113). Copyright 2014 Springer Nature. (b) Ion self-diffusion in CDC electrodes (their snapshots can be seen in Figure 28a). Ψ is the voltage applied between two such electrodes. Reproduced with permission from ref (123). Copyright 2015 American Chemical Society.