Improvement in oxidation stability of Titanium carbide MXene (Ti<sub>3</sub>C<sub>2</sub>T<sub>X</sub>) by covalent stabilization and functionalization with Octadecylphosphonic acid (OPA).
발표자
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초록
내용
MXene, a new 2D material, has attracted a lot of interest for uses in energy storage, sensor, electromagnetic interference shielding, and digital devices. The oxidation behavior of MXene films has not been discussed, despite the possibility that the chemical instability of MXene will prevent their usage in applications requiring ambient conditions and protracted operation. Here, we have chosen the Octadecylphosphonic acid molecule as a model compound for assessing the stability and change in surface properties after functionalization. No prominent oxidation was observed even after 30 days. Dispersion stability was also monitored in different solvents including Methanol, toluene, tetrahydrofuran, and Hexane. The free-standing films were prepared by the vacuum-assisted filtration method. Results from different characterization techniques such as scanning electron microscopy (SEM), X-Ray diffraction (XRD), EDS-mapping, and Fourier transform infrared spectroscopy (FT-IR) confirmed the surface functionalization of MXene with OPA molecule.