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    Oriented Two-Dimensional Covalent Organic Framework Membranes with High Ion Flux and Smart Gating Nanofluidic Transport.

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    Name:
    Oriented_ange.202113141.pdf
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    1.396Mb
    Format:
    PDF
    Description:
    Accepted manuscript
    Embargo End Date:
    2022-11-23
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    Type
    Article
    Authors
    Cao, Li cc
    Liu, Xiaowei cc
    Shinde, Digambar B
    Chen, Cailing cc
    Chen, I-Chun
    Li, Zhen cc
    Zhou, Zongyao cc
    Yang, Zhongyu
    Han, Yu cc
    Lai, Zhiping cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    King Abdullah University of Science and Technology Chemical Engineering 4700 KAUST 23955-6900 Thuwal SAUDI ARABIA
    Environmental Science and Engineering
    Biological and Environmental Science and Engineering (BESE) Division
    Chemical Science Program
    Physical Science and Engineering (PSE) Division
    Chemical Engineering Program
    KAUST Grant Number
    BAS/1/1375-01
    FCC/1/1972-19
    Date
    2021-11-24
    Embargo End Date
    2022-11-23
    Submitted Date
    2021-09-28
    Permanent link to this record
    http://hdl.handle.net/10754/673771
    
    Metadata
    Show full item record
    Abstract
    Nanofluidic 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.
    Citation
    Cao, 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 International Edition. doi:10.1002/anie.202113141
    Sponsors
    This work was supported by the KAUST Centre Competitive Fund FCC/1/1972-19 and KAUST baseline fund BAS/1/1375-01
    Publisher
    Wiley
    Journal
    Angewandte Chemie
    DOI
    10.1002/anie.202113141
    PubMed ID
    34816574
    Additional Links
    https://onlinelibrary.wiley.com/doi/10.1002/anie.202113141
    ae974a485f413a2113503eed53cd6c53
    10.1002/anie.202113141
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Advanced Membranes and Porous Materials Research Center; Physical Science and Engineering (PSE) Division; Chemical Science Program; Chemical Engineering Program

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