I'd want to use the hydrothermal one-pot approach to make an MXene using composite material. I want to keep the temperature of the MXene composite at 180 degrees Celsius. After the hydrothermal synthesis, I keep the obtained powder at 400 degrees Celsius for annealing. So, how likely is MXene to oxidize? What is the oxidation property of MXene?
How can we reduce the oxidation of MXene?
MXenes, including Ti3C2, are known to be highly sensitive to oxidation, particularly when exposed to air. Under normal atmospheric conditions, MXenes can start to oxidize at room temperature. At elevated temperatures, the oxidation rate can increase significantly, so it is possible that your MXene could oxidize when kept at 400 degrees Celsius for annealing.
The key sign of MXene oxidation is the transition of MXene phases (such as Ti3C2) to their respective oxide phases (like TiO2 in the case of Ti3C2), which can be detected through methods such as X-ray diffraction (XRD) or X-ray photoelectron spectroscopy (XPS). Oxidation alters the material's composition and can significantly affect its properties, including electrical conductivity and surface chemistry.
There are several strategies to reduce or prevent the oxidation of MXenes:
It's also important to note that even with these measures, it may not be possible to entirely prevent oxidation, particularly over extended periods or under harsh conditions. Therefore, it's essential to account for potential oxidation effects when analyzing and interpreting the results of experiments involving MXenes.
Hello Shruti Deshpande
It would be better if you did a TGA analysis for your MXene. You can get the information at what temperature your MXene gets oxidized.
- Badges
- Science topic
- Similar topics
- Geoscience
- Atmospheric Sciences
- Atmosphere
- Air