MOF-in-COF molecular sieving membrane for selective hydrogen separation

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dc.identifier.uri Fan, Hongwei Peng, Manhua Strauss, Ina Mundstock, Alexander Meng, Hong Caro, Jürgen 2021-01-20T13:15:03Z 2021-01-20T13:15:03Z 2021
dc.identifier.citation Fan, H.; Peng, M.; Strauss, I.; Mundstock, A.; Meng, H.; Caro, J.: MOF-in-COF molecular sieving membrane for selective hydrogen separation. In: Nature Communications 12 (2021), Nr. 1, 38. DOI:
dc.description.abstract Covalent organic frameworks (COFs) are promising materials for advanced molecular-separation membranes, but their wide nanometer-sized pores prevent selective gas separation through molecular sieving. Herein, we propose a MOF-in-COF concept for the confined growth of metal-organic framework (MOFs) inside a supported COF layer to prepare MOF-in-COF membranes. These membranes feature a unique MOF-in-COF micro/nanopore network, presumably due to the formation of MOFs as a pearl string-like chain of unit cells in the 1D channel of 2D COFs. The MOF-in-COF membranes exhibit an excellent hydrogen permeance (>3000 GPU) together with a significant enhancement of separation selectivity of hydrogen over other gases. The superior separation performance for H2/CO2 and H2/CH4 surpasses the Robeson upper bounds, benefiting from the synergy combining precise size sieving and fast molecular transport through the MOF-in-COF channels. The synthesis of different combinations of MOFs and COFs in robust MOF-in-COF membranes demonstrates the versatility of our design strategy. eng
dc.language.iso eng
dc.publisher Berlin : Springer Nature
dc.relation.ispartofseries Nature Communications 12 (2021), Nr. 1
dc.rights CC BY 4.0 Unported
dc.subject cell eng
dc.subject hydrogen eng
dc.subject molecular analysis eng
dc.subject sieving eng
dc.subject.ddc 570 | Biowissenschaften, Biologie ger
dc.title MOF-in-COF molecular sieving membrane for selective hydrogen separation eng
dc.type article
dc.type Text
dc.relation.doi 10.1038/s41467-020-20298-7
dc.bibliographicCitation.issue 1
dc.bibliographicCitation.volume 12
dc.bibliographicCitation.firstPage 38
dc.description.version publishedVersion eng
tib.accessRights frei zug�nglich

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