fig10

Figure 10. (A) Synthesis of FAC-Pc-COFs; (B) Structural evolution of FAC-Pc-COFs during the potassiation process; (C) Charge and discharge curves of the FAC-Pc-COF for different cycles (at 50 mA·g^-1)^[60]; (D) Long-term cycling stability of the QPP-FAC-Pc-COF (at 2,000 mA·g^-1)^[60]. Reproduced from: Yang et al. (2022), Wiley^[60]. COFs: Covalent organic framework; QPP: quinoxalino[2′,3′:9,10]phenanthro[4,5-abc]phenazine.