The distribution of the gaseous products obtained during the CO2 electrochemical reduction electrode at cathodic potentials ranging from -0.5 to -1.0 V vs. RHE is shown in Figure . It is evident that only minor differences exist in the Faradaic efficiency (FE) of the gaseous products between the electrodes deposited with different loadings of SnCl4. Carbon monoxide (CO), methane (CH4), ethylene (C2H4) and some ethane (C2H6) were gaseous products observed of CO2 electrochemical reduction. CO desorbs from the surface and is a well-known intermediate for the formation of C2H6, C2H4 and CH4. Ethane is the major product among the hydrocarbons for CTC-65 and CTC-80 electrodes with a small variation in ethane/methane ratio observed.