fig7

Figure 7. (A) Illustration of the etching process for MIL-100(Fe), (B and C) TEM images of MIL-100(Fe)-40. Reproduced with permission^[101]. Copyright 2017, The Royal Society of Chemistry. (D) Schematic illustration of the formation of hierarchically porous MOF by ammonia etching of HKUST-1, (E) SEM images of HP-HKUST-1 prepared using 20 mL NH₃ at 160 °C, (F) SEM images of HP-HKUST-1 prepared using 20 mL NH₃ at 200 °C. Reproduced with permission^[142]. Copyright 2021, Wiley-VCH. (G) Schematic illustration of the synthesis of mesoCu@Al-bpydc. (H) SEM images of mesoCu@Al-bpydc, (I) TEM images of mesoCu@Al-bpydc. Reproduced with permission^[143]. Copyright 2019, Wiley. (J) Schematic illustration of the synthesis pathway of Co-MOF and the generation of polycrystalline 2D materials at room temperature. (K and L) SEM images of Co-MOF nanoarray-derived. Reproduced with permission^[144]. Copyright 2018, American Chemical Society.