Porous Polyethersulfone-Supported Zeolitic Imidazolate Framework Membranes for Hydrogen Separation

被引：85

作者：

Ge, Lei ^{[1
]}

Zhou, Wei ^{[1
]}

Du, Aijun ^{[2
]}

Zhu, Zhonghua ^{[1
]}

机构：

[1] Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia

[2] Univ Queensland, Ctr Computat Mol Sci, Australian Inst Bioengn & Nanotechnol, Brisbane, Qld 4072, Australia

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2012年 / 116卷 / 24期

基金：

澳大利亚研究理事会;

关键词：

METAL-ORGANIC FRAMEWORK; MOLECULAR-SIEVE MEMBRANE; MIXED-MATRIX MEMBRANES; GAS-SEPARATION; SILICA MEMBRANES; ZIF-90; MEMBRANE; HOLLOW FIBERS; SELECTIVITY; STORAGE; PERFORMANCE;

D O I：

10.1021/jp3035105

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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, CH4, 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 similar to 4 x 10(-7) mol m(-2) s(-1) Pa-1, and the ideal separation factors of H-2 from Ar, O-2, N-2, and CH4, 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.

引用

页码：13264 / 13270

页数：7

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