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Related Experiment Video

Updated: Sep 11, 2025

Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording

Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording

Published on: February 12, 2020

Tellurium-Terminated MXene Synthesis via One-Step Tellurium Etching.

Guoliang Ma¹, Zongbin Luo¹, Hui Shao²

¹College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, People's Republic of China.

Nano-Micro Letters

|August 11, 2025

Summary

This summary is machine-generated.

A new elemental tellurium etching method prepares MXene materials with tunable surface chemistry. This novel approach enhances sodium storage performance, offering over 50% capacity improvement for next-generation batteries.

Keywords:

Elemental tellurium etching High-rate performance Sodium-ion storage Te-terminated MXene

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Area of Science:

Materials Science
Nanotechnology
Electrochemistry

Background:

Two-dimensional MXene materials are crucial for energy storage.
Current synthesis relies on compound etching, often using toxic reagents.
Elemental etching strategies for MXene preparation are underexplored.

Purpose of the Study:

To develop a novel, environmentally friendly MXene synthesis strategy.
To investigate the use of elemental tellurium (Te) as an etching agent.
To enhance MXene surface chemistry for improved sodium storage.

Main Methods:

Selective removal of the A-site element from MAX phase precursors using elemental tellurium.
Characterization of the resulting tellurium-terminated MXene materials.
Electrochemical testing for sodium-ion battery performance evaluation.

Main Results:

Successful synthesis of tellurium-terminated MXene using an elemental Te etching strategy.
Achieved over 50% higher capacities compared to conventionally etched MXene.
Demonstrated superior rate capability and over 90% capacity retention after 1000 cycles.

Conclusions:

The elemental tellurium etching method offers a scalable and tunable approach for MXene synthesis.
Tellurium-terminated MXenes exhibit significantly enhanced sodium storage performance.
This strategy provides a promising alternative for developing high-performance energy storage devices.