期刊
NANO CONVERGENCE
卷 8, 期 1, 页码 -出版社
SPRINGER
DOI: 10.1186/s40580-021-00259-6
关键词
MXene; Oxidation kinetics; Defect passivation; Organic dispersion; Storage condition; Polymer composite; Chemical etching; Two-dimensional (2D) nanomaterials
资金
- Basic Science Research Program through the National Research Foundation of Korea - Ministry of Science, ICT and Future Planning [2017R1A2B3006469]
- Construction Technology Research Project - Ministry of Land, Infrastructure and Transport, Republic of Korea [19SCIP-B146646-02]
This article discusses the oxidative degradation of MXene suspensions and methods to control the oxidation kinetics, emphasizing the potential and application prospects of MXenes in various fields.
Understanding and preventing oxidative degradation of MXene suspensions is essential for fostering fundamental academic studies and facilitating widespread industrial applications. Owing to their outstanding electrical, electrochemical, optoelectronic, and mechanical properties, MXenes, an emerging class of two-dimensional (2D) nanomaterials, show promising state-of-the-art performances in various applications including electromagnetic interference (EMI) shielding, terahertz shielding, electrochemical energy storage, triboelectric nanogenerators, thermal heaters, light-emitting diodes (LEDs), optoelectronics, and sensors. However, MXene synthesis using harsh chemical etching causes many defects or vacancies on the surface of the synthesized MXene flakes. Defective sites are vulnerable to oxidative degradation reactions with water and/or oxygen, which deteriorate the intrinsic properties of MXenes. In this review, we demonstrate the nature of oxidative degradation of MXenes and highlight the recent advancements in controlling the oxidation kinetics of MXenes with several promising strategic approaches, including careful control of the quality of the parent MAX phase, chemical etching conditions, defect passivation, dispersion medium, storage conditions, and polymer composites.
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