Covalent Assembly of Two-Dimensional COF-on-MXene Heterostructures Enables Fast Charging Lithium Hosts
Type
ArticleAuthors
Guo, Dong
Ming, Fangwang

Shinde, Digambar
Cao, Li

Huang, Gang

Li, Chunyang
Li, Zhen

Yuan, Youyou
Hedhili, Mohamed N.

Alshareef, Husam N.

Lai, Zhiping

KAUST Department
Advanced Membranes and Porous Materials Research CenterChemical 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/1/1375Date
2021-04-16Online Publication Date
2021-04-16Print Publication Date
2021-06Embargo End Date
2022-04-16Submitted Date
2021-02-05Permanent link to this record
http://hdl.handle.net/10754/668859
Metadata
Show full item recordAbstract
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.202101194Sponsors
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
WileyJournal
Advanced Functional MaterialsAdditional Links
https://onlinelibrary.wiley.com/doi/10.1002/adfm.202101194ae974a485f413a2113503eed53cd6c53
10.1002/adfm.202101194