Unveiling the Interfacial and Structural Heterogeneity of TiCT MXene Etched with CoF/HCl by Integrated Thermal Analysis.

TiCT MXene is a member of the recently discovered two-dimensional early transition metal carbide and nitride family of MXenes with potential applications in energy storage and heterogeneous catalysis at elevated temperatures. Here, we apply a suite of techniques to probe TiCT MXene's thermal evolutions, including X-ray diffraction (XRD), diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), and integrated thermogravimetry-differential scanning calorimetry-mass spectrometry (TG-DSC-MS). In light of this set of investigations, we find heterogeneity in the layering of TiCT MXene revealed only at higher temperatures.