(771g) Insights on the Thermal Stability of V2CTx Mxene Under Different Environments
The unique properties exhibited by MXenes, such as good electronic, mechanical, and optical properties as well as their hydrophilicity have remarkably driven the research and applications of MXenes for microelectronics sensors, water purification, energy storage, biosensors, hydrogen/oxygen evolution reactions etc. Amongst the reported MXenes, Ti3C2Tx has been studied the most to date.
In this presentation , we will report the thermal stability of V2CTx MXene under different atmospheres by combining in situ Raman spectroscopy with ex situ X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Scanning electron microscopy (SEM) in order to gain molecular-structural information from both the surface and bulk of these promising materials. The material was heated up to 600 °C under inert (N2), oxidant (CO2, air) and reductant (H2) environments with similar contact time. By combining in situ and ex situ techniques, we demonstrated that the surface and bulk structure of V2CTx transform differently under different chemical environments as a function of time. We aim to foster both V2CTx and MXenes in general as potential thermo catalysts, beyond their already proved electro-catalytic applications.