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Updated: Sep 20, 2025

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

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Magnetic Interacted Interaction Effect in MXene Skeleton: Enhanced Thermal-Generation for Electromagnetic

Mengqiu Huang¹, Lei Wang¹, Xiao Li¹

¹Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Department of Materials Science, Fudan University, Shanghai, 200438, P. R. China.

Small (Weinheim an Der Bergstrasse, Germany)

|June 8, 2022

Summary

A novel magnetized Ti3C2Tx MXene-based film incorporating SrFe12O19 flakes and MWCNTs offers superior electromagnetic interference (EMI) shielding. This flexible material achieves high electrical conductivity and excellent EMI shielding effectiveness, crucial for portable electronics.

Keywords:

MXenes electromagnetic interference shielding flexible films magnetic modulation

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Published on: June 9, 2023

Area of Science:

Materials Science
Nanotechnology
Electromagnetics

Background:

Portable and wearable electronics require efficient electromagnetic interference (EMI) shielding to mitigate electromagnetic pollution.
Existing EMI shielding materials often face limitations in performance, flexibility, or scalability.

Purpose of the Study:

To develop a high-efficiency EMI shielding material using a facile filtration approach.
To investigate the synergistic effects of Ti3C2Tx MXene, SrFe12O19 flakes, and MWCNTs for enhanced EMI shielding.

Main Methods:

Fabrication of a magnetized Ti3C2Tx-based film by assembling hexagonal SrFe12O19 flakes onto a Ti3C2Tx MXene/MWCNT substrate.
Utilizing multi-walled carbon nanotubes (MWCNTs) as dispersing agents for MXene and SrFe12O19.
Characterization of electrical conductivity and EMI shielding effectiveness in the X-band.

Main Results:

The synthesized Ti3C2Tx MXene/MWCNTs/SrFe12O19 film exhibited a high electrical conductivity of 438 S cm⁻¹.
Achieved an excellent EMI shielding effectiveness of 62.9 dB at a mere thickness of 40 µm.
Demonstrated strong magnetic response and efficient consumption of magnetic field energy via domain wall migration and ferromagnetic resonance.

Conclusions:

The developed magnetized MXene-based film offers superior EMI shielding performance due to enhanced magnetic loss and reduced wave reflection.
The freestanding and flexible nature of the film makes it suitable for integration into electronic devices.
This strategy provides a novel approach for designing advanced EMI shielding materials and expands the applications of MXene-based composites.