Ti₃C₂T_x belongs to the family of MXenes, 2D materials with an attractive combination of functional properties suitable for applications such as batteries, supercapacitors, and strain sensors. However, the fabrication of devices and functional coatings based on Ti₃C₂T_x remains challenging as they are prone to chemical degradation by their oxidation to TiO₂. In this paper, we examine the oxidation of Ti₃C₂T_x in air, liquid, and solid media via conductivity measurements to assess the shelf life of Ti₃C₂T_x MXenes. The oxidation of Ti₃C₂T_x was observed in all the media used in this study, but it is fastest in liquid media and slowest in solid media (including polymer matrices). We also show that the conventional indicators of MXene oxidation, such as changes in color and colloidal stability, are not always reliable. Finally, we demonstrate the acceleration of oxidation under exposure to UV light.

Ti ₃ C ₂ T _x属于MXenes家族，是具有2D材料的功能特性的完美结合，适用于电池，超级电容器和应变传感器等应用。然而，基于Ti ₃ C ₂ T _x的器件和功能性涂层的制造仍然具有挑战性，因为它们易于被氧化为TiO ₂而发生化学降解。在本文中，我们通过电导率测量来检查Ti ₃ C ₂ T _x在空气，液体和固体介质中的氧化，以评估Ti ₃ C ₂ T _x的保存期限MXenes。在本研究中使用的所有介质中均观察到Ti ₃ C ₂ T _x的氧化，但在液体介质中最快，而在固体介质（包括聚合物基质）中最慢。我们还表明，MXene氧化的常规指标（例如颜色和胶体稳定性的变化）并不总是可靠的。最后，我们证明了在紫外线照射下氧化的加速作用。