Research progress of electrocatalytic reduction of carbon dioxide to formate HCOOH by Sn-based catalysts
Electrocatalytic CO2 technology can utilize renewable energy to reduce CO2 to value-added chemical fuels,which is of great significance for alleviating the energy crisis and controlling carbon balance.However,the slow reaction kinetics of electrocatalytic CO2 and the complex reaction mechanism result in the low catalytic efficiency,therefore,highly active catalysts have always been the focus of research.As one of the electrocatalytic reduction products of CO2,formate has a wide range of applications in the fuel and chemical industries,and Sn-based materials have become catalysts with great development potential because of their low cost and environmental friendliness in the catalysts for the electrocatalytic CO2 to HCOOH.The current research on the electrocatalysis of CO2 to formate HCOOH by Sn-based materials in a normal temperature and pressure aqueous solution system is described,the four aspects including Sn-based metal,Sn-based alloy,Sn-based oxide,and Sn-based sulfide are reviewed,the characteristics and advantages of the catalysts are summarized,and the future development trends of Sn-based catalysts are discussed.
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