fig12

From: Polyoxometalates and their derivatives: structural tuning of versatile electrocatalysts for water splitting

Figure 12. (A) Synthetic schematic diagram, (B) high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) image and corresponding elemental distribution mapping of PMo₁₂@MOF-74. (C) LSV curves, (D) Nyquist impedance curves of MoC@CoO and PMo₁₂@MOF-74 for the HER. (A-D) Reproduced with permission from^[121]. Copyright 2025, Wiley-VCH GmbH. (E) Synthesis scheme, (F) HRTEM image of Mo-CuS/NiS/NF. (G) LSV curves of the synthesized catalysts compared with 20% Pt/C@NF vs. reversible hydrogen electrode (RHE) for the HER. (H) Illustration of the mechanism of alkaline HER on Mo-CuS/NiS/NF. (E-H) Reproduced with permission from^[122]. Copyright 2025, American Chemical Society.