Figure 7.5 shows cyclic voltammetry results for CO2 reduction in anhydrous MeCN when Li cations are added to MM in the electrolyte. We notice as soon as Li is introduced to the electrolyte mixture, CO2 reduction activity is completely suppressed. This observation already implies the stronger impact of alkali metal cations which can be due to their more hydrophilic nature and stronger adsorption on the electrode surface. Figure 7.4. Cyclic voltammetry results obtained with 0.5 mol% of Cs NTf2 and KNTf2 electrolytes in CO2-saturated anhydrous acetonitrile. Figure 7.5. Cyclic voltammetry results for CO2 reduction in anhydrous acetonitrile obtained with different mixtures of MM and Li cations. NTf2 was the common anion and total salinity was kept the same. The curves of 0.9 and 0.5 mol% Li overlap.
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