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    Covalent Assembly of Two-Dimensional COF-on-MXene Heterostructures Enables Fast Charging Lithium Hosts

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    Type
    Article
    Authors
    Guo, Dong cc
    Ming, Fangwang cc
    Shinde, Digambar
    Cao, Li cc
    Huang, Gang cc
    Li, Chunyang
    Li, Zhen cc
    Yuan, Youyou
    Hedhili, Mohamed N. cc
    Alshareef, Husam N. cc
    Lai, Zhiping cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Chemical Engineering Program
    Functional Nanomaterials and Devices Research Group
    KAUST Catalysis Center (KCC)
    Material Science and Engineering Program
    Physical Characterization
    Physical Science and Engineering (PSE) Division
    Surface Science
    KAUST Grant Number
    BAS/1/1375
    Date
    2021-04-16
    Online Publication Date
    2021-04-16
    Print Publication Date
    2021-06
    Embargo End Date
    2022-04-16
    Submitted Date
    2021-02-05
    Permanent link to this record
    http://hdl.handle.net/10754/668859
    
    Metadata
    Show full item record
    Abstract
    2D heterostructured materials combining ultrathin nanosheet morphology, defined pore configuration, and stable hybrid compositions, have attracted increasing attention for fast mass transport and charge transfer, which are highly desirable features for efficient energy storage. Here, the chemical space of 2D–2D heterostructures is extended by covalently assembling covalent organic frameworks (COFs) on MXene nanosheets. Unlike most COFs, which are generally produced as solid powders, ultrathin 2D COF-LZU1 grows in situ on aminated Ti3C2Tx nanosheets with covalent bonding, producing a robust MXene@COF heterostructure with high crystallinity, hierarchical porosity, and conductive frameworks. When used as lithium hosts in Li metal batteries, lithium storage and charge transport are significantly improved. Both spectroelectrochemical and theoretical analyses demonstrate that lithiated COF channels are important as fast Li+ transport layers, by which Li ions can be precisely nucleated. This affords dendrite-free and fast-charging anodes, which would be difficult to achieve using individual components.
    Citation
    Guo, D., Ming, F., Shinde, D. B., Cao, L., Huang, G., Li, C., … Lai, Z. (2021). Covalent Assembly of Two-Dimensional COF-on-MXene Heterostructures Enables Fast Charging Lithium Hosts. Advanced Functional Materials, 2101194. doi:10.1002/adfm.202101194
    Sponsors
    D.G. and F.M. contributed equally to this work. This work was supported by the KAUST Baseline BAS/1/1375-01 and KAUST competitive research grant URF/1/3769-01.
    Publisher
    Wiley
    Journal
    Advanced Functional Materials
    DOI
    10.1002/adfm.202101194
    Additional Links
    https://onlinelibrary.wiley.com/doi/10.1002/adfm.202101194
    ae974a485f413a2113503eed53cd6c53
    10.1002/adfm.202101194
    Scopus Count
    Collections
    Articles; Advanced Membranes and Porous Materials Research Center; Physical Science and Engineering (PSE) Division; Chemical Engineering Program; Material Science and Engineering Program; KAUST Catalysis Center (KCC)

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