fig9

Figure 9. (A) Schematic of the synthesis process and structure of HE-MOF-SC; (B) SEM image of HE-MOF-SC; (C) Metal compositions (molar ratios) of HE-MOF-SC were calculated from ICP-AES results; (D) SEM-EDX elemental distribution of C, O, N, Ni, Co, Mn and Zn for HE-MOF-SC; (E) Time course of photocatalytic H₂ precipitation over Ni (or Mn or Co or Zn)-MOF-SC and HE-MOF-SC photocatalysts; (F) Time course of photocatalytic H₂ precipitation over Ni (or Mn or Co or Zn)-MOF-NS, and HE-MOF-NS photocatalysts; (G) Schematic representation of the relative energy levels of ligands and nodes, electron transfer pathways, and photocatalytic H₂ production mechanism. Reproduced with approval^[76]. Copyright 2023, Wiley; (H) EDS-mapping diagram of TiZrNbTaWO₁₂; (I) compared with related binary oxides, the range of light absorption capacity of TiZrNbTaWO₁₂; (J) photocatalytic O₂ production performance of TiZrNbTaWO₁₂. Reproduced with permission^[77]. Copyright 2022, Elsevier. HE-MOF-SC: High-entropy metal-organic framework single crystal; SEM: scanning electron microscopy; ICP-AES: inductively coupled plasma-atomic emission spectrometry; EDX: energy dispersive X-ray spectroscopy; HE-MOF-NS: high-entropy metal-organic framework nanosheets; EDS: energy dispersive spectroscopy.