Thermal Stability of MXene: Current Status and Future Perspectives

Area of Science:

• Materials Science
• Nanotechnology
• Chemistry

Background:

• Two-dimensional transition metal carbides and carbonitrides (MXene) possess unique properties for energy storage and sensors.
• MXene's layered structure is unstable at high temperatures due to oxidation, limiting applications.
• Research is growing to enhance MXene's thermal stability for extreme conditions.

Purpose of the Study:

• To review the thermal degradation mechanisms of various MXene types.
• To summarize strategies for improving MXene thermal stability.
• To provide insights into future research directions for high-temperature MXene applications.

Main Methods:

• Summarizing degradation mechanisms for Ti-, V-, Mo-, and Nb-based MXene.
• Including the status of double transition metal MXene.
• Organizing improvement strategies into surface modification, ion/molecule introduction, and compositing.

Main Results:

• Detailed discussion on thermal degradation pathways in different MXene compositions.
• Identification of three key strategies to enhance thermal stability.
• Inclusion of recent advancements in MXene thermal stabilization.

Conclusions:

• Improving MXene thermal stability is crucial for high-temperature applications.
• Surface modification, ion/molecule incorporation, and compositing are effective strategies.
• Further research is needed to address challenges in evaluating and enhancing high-temperature MXene performance.