Defect-Elimination Strategies for Fabricating High-Strength and Highly Conductive MXene Fibers

Area of Science:

• Materials Science
• Nanotechnology
• Electrical Engineering

Background:

• Two-dimensional (2D) transition metal carbides and nitrides (MXenes) nanosheets offer excellent mechanical, electrical, and electrochemical properties.
• Their solution processability is promising for fabricating high-performance conductive MXene fibers.
• However, defects like weak interfacial interactions and voids limit fiber performance.

Purpose of the Study:

• To systematically review defect-elimination strategies for high-strength, highly conductive MXene fibers.
• To focus on structure and interfacial design for performance enhancement.
• To highlight applications of MXene fibers, particularly in wearable electronic textiles.

Main Methods:

• Summarizing recent progress in fabrication strategies.
• Analyzing defect-elimination approaches focusing on interfacial interactions, nanosheet alignment, and void reduction.
• Reviewing structure-property relationships in MXene fiber assembly.

Main Results:

• Identified key strategies for strengthening interfacial interactions and improving MXene nanosheet alignment.
• Demonstrated that eliminating voids is critical for enhancing load and electron transfer.
• Highlighted diverse multifunctional applications in wearable electronic textiles.

Conclusions:

• Defect elimination through structural and interfacial design is crucial for high-performance MXene fibers.
• MXene fibers show significant potential in advanced applications like wearable electronics.
• Future research should focus on overcoming current challenges in assembly structures for improved MXene fiber development.