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dc.contributor.authorCao, Li
dc.contributor.authorLiu, Xiaowei
dc.contributor.authorShinde, Digambar
dc.contributor.authorChen, Cailing
dc.contributor.authorChen, I-Chun
dc.contributor.authorLi, Zhen
dc.contributor.authorZhou, Zongyao
dc.contributor.authorYang, Zhongyu
dc.contributor.authorHan, Yu
dc.contributor.authorLai, Zhiping
dc.date.accessioned2021-11-25T07:59:17Z
dc.date.available2021-11-25T07:59:17Z
dc.date.issued2021-11-23
dc.date.submitted2021-09-28
dc.identifier.citationCao, L., Liu, X., Shinde, D. B., Chen, C., Chen, I.-C., Li, Z., … Lai, Z. (2021). Oriented Two-Dimensional Covalent Organic Framework Membranes with High Ion Flux and Smart Gating Nanofluidic Transport. Angewandte Chemie. doi:10.1002/ange.202113141
dc.identifier.issn0044-8249
dc.identifier.issn1521-3757
dc.identifier.doi10.1002/ange.202113141
dc.identifier.urihttp://hdl.handle.net/10754/673771
dc.description.abstractNanofluidic ion transport holds high promise in bio-sensing and energy conversion applications. However, smart nanofluidic devices with high ion flux and modulable ion transport capabilities remain to be realised. Herein, we demonstrate smart nanofluidic devices based on oriented two-dimensional covalent organic framework (2D COF) membranes with vertically aligned nanochannel arrays that achieved a 2–3 orders of magnitude higher ion flux compared with that of conventional single-channel nanofluidic devices. The surface-charge-governed ion conductance is dominant for electrolyte concentration up to 0.01 M. Moreover, owing to the customisable pH-responsivity of imine and phenol hydroxyl groups, the COF-DT membranes attained an actively modulable ion transport with a high pH-gating on/off ratio of ~100. The customisable structure and rich chemistry of COF materials will offer a promising platform for manufacturing nanofluidic devices with modifiable ion/molecular transport features.
dc.description.sponsorshipThis work was supported by the KAUST Centre Competitive Fund FCC/1/1972-19 and KAUST baseline fund BAS/1/1375-01.
dc.publisherWiley
dc.relation.urlhttps://onlinelibrary.wiley.com/doi/10.1002/ange.202113141
dc.rightsArchived with thanks to Angewandte Chemie
dc.titleOriented Two-Dimensional Covalent Organic Framework Membranes with High Ion Flux and Smart Gating Nanofluidic Transport
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentKing Abdullah University of Science and Technology Chemical Engineering 4700 KAUST 23955-6900 Thuwal SAUDI ARABIA
dc.contributor.departmentEnvironmental Science and Engineering
dc.contributor.departmentBiological and Environmental Science and Engineering (BESE) Division
dc.contributor.departmentChemical Science Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentChemical Engineering Program
dc.identifier.journalAngewandte Chemie
dc.rights.embargodate2022-11-23
dc.eprint.versionPost-print
dc.contributor.institutionNorth Dakota State University chemistry and biochemistry Dept 2735PO Box 6050 58108-6050 Fargo UNITED STATES
kaust.personCao, Li
kaust.personLiu, Xiaowei
kaust.personShinde, Digambar
kaust.personChen, Cailing
kaust.personChen, I-Chun
kaust.personLi, Zhen
kaust.personZhou, Zongyao
kaust.personHan, Yu
kaust.personLai, Zhiping
kaust.grant.numberBAS/1/1375-01
kaust.grant.numberFCC/1/1972-19
dc.date.accepted2021-11-19
refterms.dateFOA2021-11-25T08:00:58Z
kaust.acknowledged.supportUnitBAS
kaust.acknowledged.supportUnitFCC
kaust.acknowledged.supportUnitKAUST baseline fund


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