TY - JOUR
T1 - Highly hydrogen permselective ZIF-8 membranes supported on polydopamine functionalized macroporous stainless-steel-nets
AU - Huang, Aisheng
AU - Liu, Qian
AU - Wang, Nanyi
AU - Caro, Jürgen
PY - 2014/6/14
Y1 - 2014/6/14
N2 - Inspired by the bio-adhesive ability of the marine mussel, highly hydrogen permselective ZIF-8 membranes were prepared on polydopamine functionalized stainless-steel-nets (SSNs). With polydopamine functionalization of SSNs under mild conditions, the nucleation and growth of well-intergrown ZIF-8 membranes were promoted through the formation of strong non-covalent and covalent bonds, which was helpful to enhance the membrane's separation selectivity while maintaining high permeance. For binary mixtures at 100 °C and 1 bar, the mixture separation factors of H2-CO2, H2-N 2, H2-CH4 and H2-C3H 8, were found to be 8.1, 15.0, 23.2 and 329.7, which by far exceed the corresponding Knudsen coefficients and those of the as-reported ZIF-8 membranes. The ZIF-8 membranes also displayed high permeances, with the H 2 permeance higher than 2.1 × 10-5 mol m -2 s-1 Pa-1 due to the high void volume of the SSNs.
AB - Inspired by the bio-adhesive ability of the marine mussel, highly hydrogen permselective ZIF-8 membranes were prepared on polydopamine functionalized stainless-steel-nets (SSNs). With polydopamine functionalization of SSNs under mild conditions, the nucleation and growth of well-intergrown ZIF-8 membranes were promoted through the formation of strong non-covalent and covalent bonds, which was helpful to enhance the membrane's separation selectivity while maintaining high permeance. For binary mixtures at 100 °C and 1 bar, the mixture separation factors of H2-CO2, H2-N 2, H2-CH4 and H2-C3H 8, were found to be 8.1, 15.0, 23.2 and 329.7, which by far exceed the corresponding Knudsen coefficients and those of the as-reported ZIF-8 membranes. The ZIF-8 membranes also displayed high permeances, with the H 2 permeance higher than 2.1 × 10-5 mol m -2 s-1 Pa-1 due to the high void volume of the SSNs.
UR - https://www.scopus.com/pages/publications/84900820863
U2 - 10.1039/c4ta00299g
DO - 10.1039/c4ta00299g
M3 - 文章
AN - SCOPUS:84900820863
SN - 2050-7488
VL - 2
SP - 8246
EP - 8251
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
IS - 22
ER -
