Structural evolution of MXenes and their composites for electromagnetic interference shielding applications

Area of Science:

• Materials Science
• Nanotechnology
• Electromagnetics

Background:

• Electronic devices generate electromagnetic interference (EMI), necessitating effective shielding materials.
• MXenes, a class of 2D transition metal carbides, offer unique properties for EMI shielding.
• Their electrical conductivity, large surface area, light weight, and processability make them highly attractive.

Purpose of the Study:

• To review recent advancements in MXene-based materials for EMI shielding.
• To systematically summarize structural control methods for MXenes.
• To discuss the relationship between MXene microstructure and EMI shielding mechanisms.

Main Methods:

• Review of various MXene synthesis and structural modification techniques (e.g., HF etching, electrochemical etching, molten salt etching).
• Analysis of structure-property relationships in MXenes and their composites.
• Comprehensive discussion of MXene-based composite materials and their EMI shielding performance.

Main Results:

• Various methods for controlling MXene structure are systematically presented.
• The fundamental link between MXene microstructure and EMI shielding mechanisms is elucidated.
• The impact of synthesis methods and structures on the performance of MXene composites is discussed.

Conclusions:

• MXene-based materials demonstrate significant potential for high-efficiency EMI shielding.
• Further research into structural design and composite development is crucial for optimizing performance.
• Future prospects point towards advanced MXene composites for next-generation EMI shielding solutions.