Fig. 1

Characterization of Ti3C2Tx MXene support. a Schematic of Ti3C2Tx MXene preparation. b SEM image of Ti3C2Tx MXene, the scale bar corresponds to 3 µm. c TEM image of Ti3C2Tx MXene nanosheets. Inset represents the selected area electron diffraction (SAED) pattern showing hexagonal basal plane symmetry of Ti3C2Tx MXene. The scale bar corresponds to 2 µm. d XANES spectra of the Ti3C2Tx compared to references including Ti metal foil, TiO2 and TiC. e Magnitude of the Fourier transform of the k2 weighted EXAFS of the Ti3C2Tx compared to bulk TiC