fig9

Figure 9. (A) Synthesis of COF films at liquid–liquid and liquid–air interfaces. (B) Photograph of CoP-TOB film floating on water. (C) OER LSV and Tafel slope of CoP-TOB. Copyright 2023, John Wiley and Sons^[59]. (D) Thickness and lateral size distribution of exfoliated Cage-COF-1-Ns (horizontal dotted black line indicates the theoretical thickness of a single-layered Cage-COF-1 nanosheet). (E) Tafel slopes of Cage-COF-1-Ns samples in OER. (F) OER polarization curves of Cage-COF-1-Ns/Co before and after 2000 potential cycles. Copyright 2022, John Wiley and Sons^[126]. (G) Polarization curves of CoCu-ZIF, GDY, and CoCu-ZIF@GDY in two-electrode electrolyzers based on scan rate of 10 mV s^-1; (H) Comparison with reported catalysts under overpotential of 10 mA cm^-2 in two-electrode electrolyzers; (I) Long-term durability test of CoCu-ZIF@GDY electrolyzers at 10 mA cm^-2 and photograph showing water splitting (the inset). Copyright 2020, Elsevier^[128].