Porous polyethersulfone-supported zeolitic imidazolate framework membranes for hydrogen separation

Ge, Lei and Zhou, Wei and Du, Aijun and Zhu, Zhonghua (2012) Porous polyethersulfone-supported zeolitic imidazolate framework membranes for hydrogen separation. The Journal of Physical Chemistry C, 116 (24). pp. 13264-13270. ISSN 1932-7447

Abstract

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 H2, N2, CH4, O2, 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 H2 permeance can reach ∼4 × 10–7 mol m–2 s–1 Pa–1, and the ideal separation factors of H2 from Ar, O2, N2, and CH4 are 9.7, 10.8, 9.9, and 10.7, respectively. Long-term hydrogen permeance and H2/N2 separation performance show the stable permeability of the derived membranes.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 25 May 2017 04:27
Last Modified: 30 May 2017 05:52
Fields of Research : 09 Engineering > 0904 Chemical Engineering > 090404 Membrane and Separation Technologies
Identification Number or DOI: 10.1021/jp3035105
URI: http://eprints.usq.edu.au/id/eprint/31148

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