Fig. 5: Morphologies of PY-DHBD-COF and platinum cocatalyst.

HR-TEM and HAADF-STEM images of PY-DHBD-COF loaded a, e 0.5 wt% Pt. b, f, g 1 wt% Pt. c 3 wt% Pt and d 5 wt% Pt. h EDX mapping images of 1 wt% Pt loaded PY-DHBD-COF.
HR-TEM and HAADF-STEM images of PY-DHBD-COF loaded a, e 0.5 wt% Pt. b, f, g 1 wt% Pt. c 3 wt% Pt and d 5 wt% Pt. h EDX mapping images of 1 wt% Pt loaded PY-DHBD-COF.