Electric‐field assisted ultrafast synthesis of Ti₃SiC₂ MAX phase

Abstract

A galaxy of new two-dimensional (2D) transition metal carbides, nitrides, and carbonitrides (MXenes) have outperformed other 2D nanomaterials in numerous promising applications due to their extraordinary properties. However, the synthesis of MAX phase is pertinent as it is the only precursor for the development of 2D MXenes. As many conventional MAX phase synthesis procedures are complex, time-and power consuming, we have introduced a novel electric-fieldassisted flash sintering technique for a rapid synthesis of Ti 3 SiC 2 MAX phase in both air and vacuum, facilitated by Joule heating effect. The flashing event was observed with an uncontrollable rise in current flow (∼255 mA/mm 2 ) on the application of voltage in a range of 35-42 V/cm. Experimental outcome predicted that Ti 3 SiC 2 MAX phase was synthesized by applying an electric field.Here we support the experimental findings through computational approach by using density functional theory calculations. We also report the synthesis of 2D Ti 3 C 2 T X MXene from flash-synthesized Ti 3 SiC 2 MAX phase. The scientific innovation discussed here could be a breakthrough in the rapid synthesis of different MAX phases with great potential for implementation in industrial scale.

Study on the dissociation properties and spectra of iodobenzene under external electric field

“…An applied electric field has the capability to alter the system's configuration by modifying the length of bonds [30]. On one hand, as the strength of the EEF increases, the 6C-12I bond experiences a gradual increase in length, whereas the 2C-7H bond undergoes a continuous reduction in length, as illustrated in figure 2.…”