Surface and Interface Regulation of MXenes: Methods and Properties

Area of Science:

• Materials Science
• Nanotechnology
• Surface Chemistry

Background:

• MXenes, including Ti3C2Tx, are emerging 2D materials with significant attention since 2011.
• Surface terminations, intercalants, and interfaces are crucial for tuning MXene properties.
• Surface terminations can alter electronic states, leading to metallic or semiconducting behavior and modified work functions.

Purpose of the Study:

• To comprehensively review the latest advancements in surface and interface regulation of MXenes.
• To explore how synthesis methods influence MXene surface and interface chemistry.
• To discuss potential applications arising from tailored MXene properties.

Main Methods:

• Review of synthesis methods impacting MXene surface chemistry.
• Analysis of strategies for tuning MXene surface and interface properties.
• Examination of electron transfer mechanisms at MXene interfaces.

Main Results:

• Surface terminations critically influence MXene electronic band structure and conductivity.
• Interface engineering via electron transfer enables MXene functionalization.
• Diverse synthesis routes offer pathways to control MXene surface chemistry.

Conclusions:

• Effective regulation of MXene surfaces and interfaces is key to unlocking their potential.
• Future research should focus on overcoming challenges in MXene surface and interface control.
• Tailored MXenes hold promise for various advanced applications.