Figure 6. Electrochemical performance of Zn//ZMOP-x ZISCs: (a) CV curves at different scan rates; (b) The rate curves of Zn//ZMOP-x under different current densities; (c) Impedance comparison diagram of Zn//ZMOP-x; (d) Pseudocapacitance contribution of Zn//ZMOP-4 at different sweep speeds; (e) Performance of Zn//ZMOP-4 after 5000 cycles at 0.5 A g-1