"Catalytic vs Electrocatalytic reduction of CO2 to valuable products" In recent times there has been a great increase in carbon dioxide emissions caused by technological development and the continuous use of fossil fuels. For this reason the scientific community has focused on different possibilities for CO2 reduction. One of the possible routes is represented by the use of CO2 as a reagent to obtain high value-added products such as methanol. Methanol represents a feedstock of many chemicals processes for the production of chemicals and it is a green fuel with an energy density comparable to the mostly used fuel, such as gasoline (methanol: 15.6 MJ L-1; gasoline: 34.2 MJ L-1).