The amount of electrochemically active anthraquinone was estimated from cyclic voltammograms obtained using slow scan rates (0.1 mVs -1 ) and subtracting the functionalized capacity from the unfunctionalized capacity. Upon functionalization, the double-layer capacity decreases within the functionalized system leading to an underestimation if the capacities are subtracted without taking this into consideration. To account for the decrease in double-layer capacitance, the CV current was normalised to allow the double-layer charging current to overlap at 0 to -1 V (Figure .I). The normalised ratio was then used to estimate anthraquinone loadings, which were found to broadly agree with the values determined using solid-state NMR, although with some discrepancy seen for f-CMK-3 (Table ). According to the electrochemistry analysis, f-CMK-3 and f-YP-80F show higher values of anthraquinone loading compared to f-BP-1300. The same synthetic procedure and reagent quantities were used in all three cases therefore the cause of this difference is due to the initial carbon structures.