Fig. 10.

Model results: water adsorption + ion attraction. (A) The cation has a larger hydrated ion radius than the anion (model for LiClO₄; $x_{\mathit{rep}}^{\mathit{cat}}\approx 4 \text{Å}, x_{\mathit{rep}}^{an}\approx 3$Å). (B) The cation and anion have the same hydrated ion size (model for NaClO₄; $x_{\mathit{rep}}^{\mathit{cat}}\approx 3 \text{Å}, x_{\mathit{rep}}^{an}\approx 3$Å) and (C) the cation has a smaller hydrated ion radius than the anion (model for CsClO₄; $x_{\mathit{rep}}^{\mathit{cat}}\approx 4 \text{Å}, x_{\mathit{rep}}^{an}\approx 3$Å). All other parameters are identical to Fig. 9A.