Insights into the thermal and chemical stability of multilayered V₂CT_x MXene

Abstract

We report the thermal stability of multilayered V2CTx MXene by combining various techniques to elucidate and monitor the molecular, electronic, and structural changes in the material.

Exploiting two-dimensional morphology of molybdenum oxycarbide to enable efficient catalytic dry reforming of methane

“…Overall, 2D-Mo 2 C T x /SiO 2 behaves very differently in reductive de-functionalization conditions when compared to m -Mo 2 C T x that sinters under these conditions forming a porous bulk β-Mo 2 C phase 32 . Similarly, a multi-layer m -V 2 C T x was reported to sinter around 600 °C, which appears to be a general temperature limitation of multi-layer MXenes 41 . These results underline the importance of the dispersion of the nanosheets on a support to avoid sintering.…”

Elementary processes governing V2AlC chemical etching in HF

“…27 The apparition of competing chemical processes leading to partial carbonization during etching have also been reported. 28 This residual carbon could, in turn, reduce conductivity and performance in applications such as fuel cells or biosensors.…”

Tuning 2D MXenes by Surface Controlling and Interlayer Engineering: Methods, Properties, and Synchrotron Radiation Characterizations

“…The contents of functional groups was tunable due to the concentration of etchants, etching time, or by the different post‐treatments such as annealing in different atmospheres and treated by hydrazine. [ 31a,50 ] Therefore, much attention has been paid on the engineering of MXenes surface terminations with various properties.…”