fig1

Figure 1. (A) The PXRD profile of the experimentally observed (black), Pawley refined (red), difference (orange), simulated using the AA (blue) and staggered AB (green) stacking modes; (B) Top view of theoretically modeled eclipsed-AA stacking model for the Co-COF (C-gray, N-blue, H-white, O-red, Co-pink); (C) The PXRD profile; (D) Top view of theoretically modeled eclipsed-AA stacking model for the TMA-COF; The TEM images of (E) Co-COF and (F) TMA-COF; The SEM images of (G) Co-COF and (H) TMA-COF. PXRD: Powder X-ray diffraction; COF: covalent organic framework; TMA-COF: (3-carboxypropyl)trimethylammonium covalent organic framework; TEM: transmission electron microscopy.