A Search for The Long-Duration Storage Medium of Ti₂CTx MXene

Recently, a new family of 2D transition metal carbides and nitrides named MXenes has gained significant attention due to their excellent electrochemical and mechanical properties. But, poor chemical/ oxidation stability of MXene acts as a barrier in its widespread application. To date, oxidation stability of Ti₃C₂T_x MXene has been mostly studied among all Ti-based MXene, due to its excellent capacitance and metallic conductivity. The lightest Ti₂CT_x MXene has secured less attention in the research field, although it has comparable physiochemical properties. It also degrades rapidly over time in ambient conditions, limiting its widespread implementation. In this regard, we have resolved the two challenging tasks to broaden the application of the most unstable Ti-based Ti₂CT_x MXene: the improvement of oxidation stability and the prolongation of their shelf life for further practical applications. To solve these problems, we have dispersed the Ti₂CT_x MXene in different solvents (organic and water) for an extended period of time (3 months) under ambient as well as freezing conditions and observed how it affects the oxidation stability. Finally, the results suggest that the suitable medium to store<b> </b>Ti₂CT_x MXene for 3 months is IPA or DMSO at -20°C or Water at -80°C. This work is suitable for a wide range of readers working on synthesis, stability and characterization of Ti₂CT_x MXene to explore its application in the field of Supercapacitors, Li-ion batteries (LIBs), EMI shielding and Hydrogen storage etc.