TY - JOUR
T1 - Porous polyethersulfone-supported zeolitic imidazolate framework membranes for hydrogen separation
AU - Ge, Lei
AU - Zhou, Wei
AU - Du, Aijun
AU - Zhu, Zhonghua
PY - 2012/6/21
Y1 - 2012/6/21
N2 - ZIF-8 thin layer has been synthesized on the asymmetric porous polyethersulfone (PES) substrate via secondary seeded growth. Continuous and dense ZIF-8 layer, containing microcavities, has good affinity with the PES support. Single gas permeance was measured for H 2, N 2, CH 4, O 2, and Ar at different pressure gradients and temperatures. Molecular sieving separation has been achieved for selectively separating hydrogen from larger gases. At 333 K, the H 2 permeance can reach ∼4 ×10 -7 mol m -2 s -1 Pa -1, and the ideal separation factors of H 2 from Ar, O 2, N 2, and CH 4 are 9.7, 10.8, 9.9, and 10.7, respectively. Long-term hydrogen permeance and H 2/N 2 separation performance show the stable permeability of the derived membranes.
AB - ZIF-8 thin layer has been synthesized on the asymmetric porous polyethersulfone (PES) substrate via secondary seeded growth. Continuous and dense ZIF-8 layer, containing microcavities, has good affinity with the PES support. Single gas permeance was measured for H 2, N 2, CH 4, O 2, and Ar at different pressure gradients and temperatures. Molecular sieving separation has been achieved for selectively separating hydrogen from larger gases. At 333 K, the H 2 permeance can reach ∼4 ×10 -7 mol m -2 s -1 Pa -1, and the ideal separation factors of H 2 from Ar, O 2, N 2, and CH 4 are 9.7, 10.8, 9.9, and 10.7, respectively. Long-term hydrogen permeance and H 2/N 2 separation performance show the stable permeability of the derived membranes.
UR - http://www.scopus.com/inward/record.url?scp=84863303136&partnerID=8YFLogxK
U2 - 10.1021/jp3035105
DO - 10.1021/jp3035105
M3 - 文章
AN - SCOPUS:84863303136
SN - 1932-7447
VL - 116
SP - 13264
EP - 13270
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 24
ER -