Synthesis and Characterization of Two-Dimensional Titanium Nitride (Ti<sub>4</sub>N<sub>3</sub>T<em><sub>x</sub></em>) MXene
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초록
내용
Two-dimensional transition metal carbides/carbonitrides/nitrides also known as MXenes are promising candidates for many applications due to their high electrical conductivity, mechanical flexibility, surface tunability, and easy processability. Carbide and carbonitride MXenes have been explored for multiple applications, however, a few reports are available on nitride MXenes due to higher formation energy and poor stability against etchant, typically HF. In this work, we optimize synthesis conditions of Ti4N3Tx MXene by using molten salt etching method in air environment. Successful synthesis of Ti4N3Tx MXene was verified by XRD, XPS, SEM, TEM, and AFM techniques. Moreover, freestanding Ti4N3Tx films were obtained by vacuum-assisted filtration which exhibits good thermal and oxidative stability.