Cyclic voltammetry chemistry following

Scheme 3 accounts for the various products formed, and it is consistent with known transformations in organometallic chemistry. In the first step, CO2 is reduced in a proton-coupled two-electron process to form adsorbed CO. That CO is an intermediate in the reduction of CO2 to hydrocarbons is supported by the following observations. (1) Reduction of CO at copper electrodes under the same conditions gives a similar distribution of hydrocarbon products. Reduction of formate, on the other hand, gave no hydrocarbon products [98, 102]. (2) CO on the electrode surface could be detected by cyclic voltammetry measurements. Fourier transform... 

In Fig. 6 is shown a series of cyclic voltammograms which demonstrate that the catalytic properties of the the complex are due to chemistry that originates from the second bpy-based reduction wave. Using bulk electrolysis and cyclic voltammetry techniques combined with digital simulation methods, the following mechanism can be proposed for electrocatalytic CO production in CH CN... 

The structure of a typical Keggin-type polyoxometaUate, POM, is shown in Figure 7. Important features of the chemistry and electrochemistry are detailed in a recent issue of Chemical Reviews [29], The voltammetry of POMs is characterized by stepwise reductions of the multi-cation centers. For example, Figure 8 contains a cyclic voltammogram of PMOj204q. The three reduction steps are described by the following equations [30] ... 

---