▎ 摘 要
We report the intergrowth of ZIF-8 crystals on ultrathin graphene oxide (GO) membranes, which helps to reduce the non-selective pores of pristine GO membranes leading to gas selectivities as high as 406, 155, and 335 for H-2/CO2, H-2/N-2, and H-2/CH4 mixtures, respectively.