Ultra-selective defect-free interfacially polymerized molecular sieve thin-film composite membranes for H2 purification

Zain Ali, Federico Pacheco Oreamuno, Eric Litwiller, Yingge Wang, Yu Han, Ingo Pinnau

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Purification is a major bottleneck towards generating low-cost commercial hydrogen. In this work, inexpensive high-performance H2 separating membranes were fabricated by modifying the commercially successful interfacial polymerization production method for reverse osmosis membranes. Defect-free thin-film composite membranes were formed demonstrating unprecedented mixed-gas H2/CO2 selectivity of ≈ 50 at 140 °C with H2 permeance of 350 GPU, surpassing the permeance/selectivity upper bound of all known polymer membranes by a wide margin. The combination of exceptional separation performance and low manufacturing cost makes them excellent candidates for cost-effective hydrogen purification from steam cracking and similar processes.
Original languageEnglish (US)
Pages (from-to)30-35
Number of pages6
JournalJ. Mater. Chem. A
Volume6
Issue number1
DOIs
StatePublished - 2018

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