Speaker
Description
A thorough understanding of the dispersion behaviour of Ti3C2Tx MXenes is crucial for their effective incorporation into advanced functional systems, such as fiber spinning, spray coating, and printable electronics. However, a significant challenge remains in characterizing the dynamic structural evolution of MXene nanosheets in liquid media, particularly regarding their stacking, spacing, and aggregation tendencies, which profoundly influence their processability and performance. This study addresses this gap by utilizing Small-Angle X-ray Scattering (SAXS) to examine the structural organization and interparticle interactions of Ti3C2Tx MXene sheets in various liquid dispersions. By analyzing variations in scattering profiles in relation to changes in concentration, solvent polarity, and types of ion intercalants, we identify critical parameters that govern the colloidal stability and exfoliation quality of the MXenes. The SAXS data revealed notable shifts in interlayer spacing and aggregation behavior, allowing us to quantify dispersion states ranging from monolayers to restacked aggregates. These insights will guide strategies for optimizing dispersion protocols and tailoring self-assembled architectures for use in flexible electronics, fibers, and nanocomposites.
