Preparation of Two-dimensional Ti2CTx by Molten Fluorinated Salt Method
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2019年第2期
论文作者：严明 YANG Lei LI Chao ZOU Yunqi
文章页码：299 - 302
摘 要：We prepared a two-dimensional transition metal carbide Ti2CTx by treatment of Ti2 AlC in molten fluoride salt. Two fluorinated salt systems were used to etch Al from Ti2 AlC powder precursor under the argon atmosphere, and then the resulting MXene was delaminated with TBAOH to produce few-layered nanosheets of Ti2CTx. The reaction was undergone at different temperatures to study the effect of temperature.The results show that the optimal reaction temperature is 600 ℃ in LiF-NaF-KF system, and 850 ℃ in NaFKF system. The molten salt treated products are delaminated and quasi-2 D MXene sheets can be obtained. The thickness of the MXene sheets prepared from the binary molten salt system is smaller than that of the ternary molten salt system.
严明1,2，YANG Lei3，LI Chao3，ZOU Yunqi3
1. Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology2. Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology3. College of Materials and Chemical Engineering, Hubei University of Technology
摘 要：We prepared a two-dimensional transition metal carbide Ti2CTx by treatment of Ti2 AlC in molten fluoride salt. Two fluorinated salt systems were used to etch Al from Ti2 AlC powder precursor under the argon atmosphere, and then the resulting MXene was delaminated with TBAOH to produce few-layered nanosheets of Ti2CTx. The reaction was undergone at different temperatures to study the effect of temperature.The results show that the optimal reaction temperature is 600 ℃ in LiF-NaF-KF system, and 850 ℃ in NaFKF system. The molten salt treated products are delaminated and quasi-2 D MXene sheets can be obtained. The thickness of the MXene sheets prepared from the binary molten salt system is smaller than that of the ternary molten salt system.
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