Recent Advances in Non-Ti MXenes: Synthesis, Properties, and Novel Applications

Area of Science:

• Materials Science
• Nanotechnology
• Chemistry

Background:

• MXenes are a fascinating class of 2D nanomaterials with diverse applications.
• Titanium-based MXenes are extensively studied, forming a foundation for the field.
• Exploration of non-titanium transition metal (TM) based MXenes is crucial for expanding their potential.

Purpose of the Study:

• To systematically review the preparation, characteristics, limitations, discoveries, and applications of novel M-based MXenes (M-MXenes), where M represents non-Ti TMs.
• To highlight the superior properties of 2D non-Ti MXenes compared to Ti-MXenes in various applications.
• To provide a comprehensive evaluation of current research, from synthesis challenges to application selection based on novel features.

Main Methods:

• Systematic literature review and evaluation of existing research on M-MXenes.
• Analysis of advancements in both top-down and bottom-up production methods for MXene nanomaterials.
• Exploration of novel material compositions, including double metal combinations and metal borides.

Main Results:

• Non-Ti TMs (Sc, V, Cr, Y, Zr, Nb, Mo, Hf, Ta, W, Lu) can form MXene nanomaterials with exceptional properties.
• 2D non-Ti MXenes demonstrate performance advantages over conventional Ti-MXenes in specific applications.
• Advancements in synthesis allow precise control over M-characteristic MXene nanomaterials for tailored applications.

Conclusions:

• Non-Ti MXenes represent a promising frontier in 2D nanomaterials, offering enhanced properties and expanded application possibilities.
• Further research into the synthesis and characterization of non-Ti MXenes is essential to unlock their full technological potential.
• The development of novel MXene families, including metal borides, broadens the scope of 2D TM-based nanomaterials.