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Modulating Electrochemical Energy Storage And Multi-spectra Defense Of Mxenes By Interfacial Dual-filler Engineering.

Home
Research Domains
Engineering
Materials Engineering
Wearable Materials
Modulating Electrochemical Energy Storage And Multi-spectra Defense Of Mxenes By Interfacial Dual-filler Engineering.

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Modulating Electrochemical Energy Storage and Multi-Spectra Defense of MXenes by Interfacial Dual-Filler Engineering.

Wenting Chen¹, Wei Guo¹, Zongxu Liu¹

¹Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China.

Small (Weinheim an Der Bergstrasse, Germany)

|July 29, 2024

View abstract on PubMed

Summary

This summary is machine-generated.

This study presents a nacre-inspired MXene film engineered with dual nanofillers for enhanced electrochemical energy storage and spectrum defense. The material exhibits superior structural order, mechanical strength, conductivity, and stability for advanced applications.

Keywords:

MXenes electromagnetic interference shielding low infrared emissivity nanocomposites

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Area of Science:

Materials Science
Nanotechnology
Electrochemistry

Background:

MXenes are promising for energy storage due to conductivity and surface chemistry.
MXene self-restacking limits performance.
Spectrum defense applications are emerging for MXenes.

Purpose of the Study:

To engineer a nacre-inspired MXene film with improved structural order and performance.
To address MXene self-restacking issues.
To enhance electrochemical energy storage and spectrum defense capabilities.

Main Methods:

Dual-filling of MXene films with polyvinyl alcohol modified with 2-ureido-4[1H]-pyrimidinone (PVA-UPy) and carbon nanotubes (CNTs).
Fabrication of a nacre-inspired nanocomposite film.

supercapacitors

Characterization of structural, mechanical, electrochemical, and electromagnetic properties.

Main Results:

Achieved a highly ordered structure (Herman's order value of 0.838) and high mechanical strength (139.5 MPa).
Demonstrated excellent electrochemical performance with capacitance of 508.2 F cm^-3 and 10,000-cycle stability.
Exhibited efficient radar and infrared spectrum defense with high electromagnetic shielding (19186 dB cm² g^-1) and low IR emissivity (0.16).

Conclusions:

The dual-nanofiller engineering effectively overcomes MXene self-restacking.
The nacre-inspired MXene film offers a promising platform for high-performance energy storage and spectrum defense.
The developed material shows potential for applications requiring long lifetime and safety in complex conditions.