Ultrathin ZIF-8 membranes with a thickness of around 200 nm were prepared by chemical vapour modification of surface chemistry and nanopores of an asymmetric bromomethylated poly(2,6-dimethyl-1,4-phenylene oxide) (BPPO) substrate. The resulting ZIF-8 membranes exhibited exceptional H2 permeance as high as 2.05 × 10−6 mol m−2 s−1 Pa−1 with high H2/N2 and H2/CO2 selectivities (9.7 and 12.8, respectively).
Shamsaei, E., Low, Z-X., Lin, X., Mayahi, A., Liu, H., Zhang, X., Zhe Liu, J., & Wang, H. (2015). Rapid synthesis of ultrathin, defect-free ZIF-8 membranes via chemical vapour modification of a polymeric support. Chemical Communications, 51(57), 11474-11477. https://doi.org/10.1039/C5CC03537F