Emerging 2D MXenes for supercapacitors: status, challenges and prospects

Area of Science:

• Materials Science
• Nanotechnology
• Electrochemistry

Background:

• MXenes are a rapidly growing family of 2D transition metal carbides/nitrides.
• Their unique properties include electronic conductivity, hydrophilicity, and layered structures.
• Research on MXenes has surged since the discovery of Ti3C2Tx in 2011.

Purpose of the Study:

• To review recent advances in MXene research for supercapacitor applications.
• To explore the relationship between MXene fabrication, structure, and properties.
• To summarize energy storage mechanisms and performance factors in MXene-based supercapacitors.

Main Methods:

• Review of various MXene fabrication routes.
• Analysis of MXene structure, properties, stability, and surface chemistry.
• Examination of capacitive energy storage mechanisms and electrochemical behavior.

Main Results:

• MXenes possess properties ideal for energy storage, particularly supercapacitors.
• Fabrication methods significantly influence MXene structure and surface chemistry.
• MXene-based supercapacitors demonstrate significant potential for energy storage devices.

Conclusions:

• MXenes are highly promising materials for next-generation supercapacitors.
• Further research is needed to address challenges and unlock full potential.
• This review provides insights into MXene development for energy storage.