Atomic defects, functional groups and properties in MXenes

Wenjun Cui; Zhi Yi Hu; Raymond R. Unocic; Gustaaf Van Tendeloo; Xiahan Sang

doi:10.1016/j.cclet.2020.04.024

Atomic defects, functional groups and properties in MXenes

Wenjun Cui, Zhi Yi Hu, Raymond R. Unocic, Gustaaf Van Tendeloo, Xiahan Sang

Materials MicroAnalysis

Research output: Contribution to journal › Article › peer-review

56 Scopus citations

Abstract

MXenes, a new family of functional two-dimensional (2D) materials, have shown great potential for an extensive variety of applications within the last decade. Atomic defects and functional groups in MXenes are known to have a tremendous influence on the functional properties. In this review, we focus on recent progress in the characterization of atomic defects and functional group chemistry in MXenes, and how to control them to directly influence various properties (e.g., electron transport, Li⁺ adsorption, hydrogen evolution reaction (HER) activity, and magnetism) of 2D MXenes materials. Dynamic structural transformations such as oxidation and growth induced by atomic defects in MXenes are also discussed. The review thus provides perspectives on property optimization through atomic defect engineering, and bottom-up synthesis methods based on defect-assisted homoepitaxial growth of MXenes.

Original language	English
Pages (from-to)	339-344
Number of pages	6
Journal	Chinese Chemical Letters
Volume	32
Issue number	1
DOIs	https://doi.org/10.1016/j.cclet.2020.04.024
State	Published - Jan 2021

Funding

This work was supported by the National Natural Science Foundation of China (No. 51902237 ), the Fundamental Research Funds for the Central Universities of China (No. WUT: 2019III012GX ), Nanostructure Research Center (NRC) , and Center for Materials Analysis and Testing at Wuhan University of Technology . R. R. Unocic was supported by Oak Ridge National Laboratory’s Center for Nanophase Materials Sciences (CNMS) , a U.S. Department of Energy Office of Science User Facility. This work was supported by the National Natural Science Foundation of China (No. 51902237), the Fundamental Research Funds for the Central Universities of China (No. WUT: 2019III012GX), Nanostructure Research Center (NRC), and Center for Materials Analysis and Testing at Wuhan University of Technology. A portion of this work was supported by the Fluid Interface Reactions, Structures and Transport (FIRST) Center, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences (RRU).

Funders	Funder number
CNMS
Nanostructure Research Center
Oak Ridge National Laboratory
U.S. Department of Energy
Office of Science
Basic Energy Sciences
Royal Roads University
National Natural Science Foundation of China	51902237
Fundamental Research Funds for the Central Universities	2019III012GX

Keywords

Atomic defects
Electron microscopy
Functional properties
MXenes
Surface functional groups

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.cclet.2020.04.024

Cite this

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title = "Atomic defects, functional groups and properties in MXenes",

abstract = "MXenes, a new family of functional two-dimensional (2D) materials, have shown great potential for an extensive variety of applications within the last decade. Atomic defects and functional groups in MXenes are known to have a tremendous influence on the functional properties. In this review, we focus on recent progress in the characterization of atomic defects and functional group chemistry in MXenes, and how to control them to directly influence various properties (e.g., electron transport, Li+ adsorption, hydrogen evolution reaction (HER) activity, and magnetism) of 2D MXenes materials. Dynamic structural transformations such as oxidation and growth induced by atomic defects in MXenes are also discussed. The review thus provides perspectives on property optimization through atomic defect engineering, and bottom-up synthesis methods based on defect-assisted homoepitaxial growth of MXenes.",

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AU - Cui, Wenjun

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AU - Unocic, Raymond R.

AU - Van Tendeloo, Gustaaf

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AB - MXenes, a new family of functional two-dimensional (2D) materials, have shown great potential for an extensive variety of applications within the last decade. Atomic defects and functional groups in MXenes are known to have a tremendous influence on the functional properties. In this review, we focus on recent progress in the characterization of atomic defects and functional group chemistry in MXenes, and how to control them to directly influence various properties (e.g., electron transport, Li+ adsorption, hydrogen evolution reaction (HER) activity, and magnetism) of 2D MXenes materials. Dynamic structural transformations such as oxidation and growth induced by atomic defects in MXenes are also discussed. The review thus provides perspectives on property optimization through atomic defect engineering, and bottom-up synthesis methods based on defect-assisted homoepitaxial growth of MXenes.

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Atomic defects, functional groups and properties in MXenes

Abstract

Funding

Keywords

UN SDGs

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