fig7

Figure 7. Active site engineering in MOF catalysts. (A) Molecular frameworks of ZIF-8 and CALF20; (B) FE_CO of ZIF-8 and CALF20; (C) Catalytic activity of ZIF-8 and CALF20 for CO^[84]. Copyright 2021 American Chemical Society; (D) Schematic depicting the synthesis process and molecular structure of Cu-X MOFs; (E) FE_CH4 of various Cu-X MOFs^[85]. Copyright 2022 John Wiley & Sons; (F) Illustration of structural transformation of Cu-btca nanocages to nanosheets; (G) Scheme for Cu-btca nanosheets during eCO₂RR^[88]. Copyright 2024 American Chemical Society. MOFs: Metal-organic frameworks; FE: faradaic efficiency.