Metal–Organic Frameworks for Electrocatalytic CO2 Reduction into Formic Acid

Metal–organic frameworks (MOFs) are used in catalysis due to their high specific surface area and porous structure. The dispersed active sites limited reaction space that render MOFs have the potential for highly selective electrocatalytic CO2 reduction (ECO2RR). Meanwhile, formic acid (HCOOH) is attracting attention as a liquid product with economic benefits. This review summarizes derivatives applied ECO2RR into HCOOH products. preparation methods of electrocatalysts unique advantages discussed. A series MOF obtained by electrochemical or carbonization processes highlighted, including metal nanomaterials, carbon-based nanocomposites, single-atom catalysts, bimetallic nanocomposites. Depending on building units (metal ions organic linkers) conditions derivatization, MOF-based catalysts exhibit rich diversity controllable modulation catalytic performance. Finally, challenges encountered at this stage future research directions proposed.