fig19

Figure 19. (A) Schematic illustration for the structural evolution of CoSn(OH)₆ during amorphization. (B) The current densities of MCoSn(OH)₆ and MCoSn(OH)₆-300 in O₂-saturated 1.0 M KOH solution. (C) Continuous OER chronopotentiometry test for FeCoSn(OH)₆-300 at 100 mA cm^-2. (D) The PDOS of FeCoSn(OH)₆-300. (E) The energetic trend of OER at U = 0 V. (Reproduced with permission^[160]. Copyright 2022, Nature). (F) XRD patterns of Fe-PO_x 0.5~1.5 h and A-Fe-PO_x. (G) Chronopotentiometric curves of the long-term stability of electrodes at 10 mA cm^-2 without iR compensation (Inset: polarization curves initial and after 2,400 CV). (Reproduced with permission^[161]. Copyright 2023, Elsevier). (H) The recent reports of amorphous electrocatalyst properties in OER.