In detail, a low magnification TEM image of ZIF-8 on graphene and the corresponding diffraction pattern are shown in fig. ). Fig. ) shows the diffraction patterns of ZIF-8 supported on graphene substrate at 300 kV and 200 kV, respectively. Fig. ) shows the fading of the relative intensity of {431} and {110} Bragg planes at 300 and 200 kV, respectively.