SACs have been emerged as a promising alternative to traditional catalysts due to their exceptional activity and selectivity for the ECO2RR. Compared to the traditional catalysts, SACs are composed of individual metal atoms that are strongly attached to the supporting material. This distinctive feature significantly improves their activity. In addition, SACs have remarkable efficiency in converting CO2 into important chemicals and fuels, exhibiting enhanced selectivity for precise products, such as CH4 or CO. The high selectivity of SACs reduces the formation of undesirable byproducts, making them a sustainable choice for tackling CO2 emissions and aiding the shift towards a more carbon-neutral energy economy.