Even with a low scan rate (125F g -1 at 5 mV/s), severe aggregation would be simple for the small, derived carbon particle sizes, further leading to low capacitance . The resultant ZIF-8's uniform 3D large-sized polyhedron carbon structure has a significantly larger capacitance A and B, reproduced with permission from ; C, D, E and F, reproduced with permission from ; G, H and I, reproduced with permission from ; and J, K and L reproduced with permission from .