fig11

Figure 11. (A) Schematic illustration of MOFs decarboxylation-induced effect to construct defect-enhanced single-atom catalysts. Reproduced with permission^[188]. Copyright 2021, Wiley-VCH. (B) Schematic illustration of the preparation of porous carbon with high defect density, (C) TEM image of ZnO@ZIF-7, (D and E) HRTEM image of ZnO quantum dots encapsulated by ZIF-7. Reproduced with permission^[189]. Copyright 2022, Elsevier. (F) Schematic illustration of the preparation of CoFe/N CNFs, (G and H) SEM image (I) TEM image, (J) HAADF-STEM image, (K) SAED pattern, (L) EDS mapping of CoFe/N CNFs. Reproduced with permission^[190]. Copyright 2022, Springer. (M) Schematic illustration of the synthesis process of SA-Fe-NGM. Reproduced with permission^[191]. Copyright 2022, American Chemical Society.