Note: For a solid/liquid interface in which no component of the liquid phase penetrates into the solid, the surface excess (or adsorption) of component $i$ is defined as; $n_i^{\mathrm{\sigma }}=n_i-V^{\mathrm{l}}{c}_i^{\mathrm{l}}$, where $n_i$ is the total amount of $i$ in the system, $V^{\mathrm{l}}$ is the volume of an arbitrarily chosen amount of bulk liquid (in the framework of the so-called algebraic method), and $c_i^{\mathrm{l}}$ is its bulk concentration in the liquid.