electrochemical spectroscopy techniques are required to further examine the adsorption behavior of imidazolium cations and the potential absence of C2-H coordination with surface adsorbed CO2. These studies, in combination with molecular dynamics calculations, will provide valuable insights into the dynamics of imidazolium-assisted CO2 reduction. We also further explored the impact of alkali metal cations on anhydrous electrochemical CO2 reduction. Figure 7.2 presents a comparison of the cyclic voltammetry results obtained in CO2saturated anhydrous acetonitrile using different supporting electrolytes: MM NTf2, Li NTf2, K NTf2, and Cs NTf2. The results clearly indicate that the activity for CO2 reduction is significantly higher with MM NTf2 electrolyte compared to the alkali metal cations at the same concentration. In fact, we observed negligible activity with the alkali metal cations under the same experimental conditions. These findings highlight the substantial influence of the electrolyte identity, particularly the presence of the 1,3-dimethyl imidazolium cation, on enhancing the activity for CO2 reduction in anhydrous conditions. Figure 7.2. Cyclic voltammetry results obtained with 0.5 mol% of four different electrolytes in CO2-saturated anhydrous acetonitrile. The cations investigated include MM NTf2, Li NTf2, Cs NTf2, and KNTf2.
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