Fig. 3
Illustration of the Em distribution within each of the different structural groups. The y axis on the left and right represent the number of datapoints and Em values (in eV), respectively. Stacked bar charts correspond to the counts within each structural group, with the colors indicating the split across various intercalants. The black vertical lines represent the range of Em values for a given structural group with the squares and circles representing the maxima and minima, respectively. The inset shows a pie-chart with the contributions from each intercalant (i.e., Al, Ca, K, Li, Mg, Na, Rb, Sr, and Zn, as represented by the different colors) to the total dataset.
