fig4

Figure 4. (A, B) Synthesis progress (A) and Ru K-edge EXAFS fitting curve (B) of Ru₁/LDH^[43]. Copyright 2023, Wiley-VCH; (C, D) Synthesis progress (C) and Ru K-edge EXAFS fitting curve (D) of Ru/CoFe-LDH^[47]. Copyright 2019, Springer Nature; (E, F) Synthesis progress (E) and Ir L₃-edge EXAFS fitting curve (F) of Ir_SAC-NiFe-LDH^[48]. Copyright 2023, American Chemical Society; (G, H) Synthesis progress (G) and Pt L₃-edge EXAFS spectra (H) of Ni₃Fe-CO₃^2- LDH-SA^[49]. Copyright 2021, Royal Society of Chemistry. LDHs: Layered double hydroxides; EXAFS: Extended X-ray absorption fine structure.