Synthesis and electrochemical performance of Ti₃C₂T_x with hydrothermal process

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• 作者：Libo Wang ; Heng Zhang ; Bo Wang ; Changjie Shen…
• 关键词：MXene ; Ti3C2Tx ; hydrothermal ; XPS ; electrochemical
• 刊名：Electronic Materials Letters
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：12
• 期：5
• 页码：702-710
• 全文大小：1,330 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Condensed Matter Physics
  Electronics, Microelectronics and Instrumentation
  Optical and Electronic Materials
  Thermodynamics
  Characterization and Evaluation of Materials
  
• 出版者：The Korean Institute of Metals and Materials, co-published with Springer Netherlands
• ISSN：2093-6788
• 卷排序：12

文摘

In this study, a simple hydrothermal method has been developed to prepare Ti₃C₂T_x from Ti₃AlC₂ as a high-performance electrode material for supercapacitors. This method is environmentally friendly and has a low level of danger. The morphology and structure of the Ti₃C₂T_x can be controlled by hydrothermal reaction time, temperature and NH₄F amounts. The prepared Ti₃C₂T_x was characterized by X-ray diffraction, field emission scanning electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy and Brunauer-Emmet-Teller. The results show that the prepared Ti₃C₂T_x is terminated by O, OH, and F groups. The electrochemical properties of the Ti₃C₂T_x sample exhibit specific capacitance up to 141 Fcm−3 in 3 M KOH aqueous electrolyte, and even after 1000 cycles, no significant degradation of the volumetric capacitance was observed. These results indicate that the Ti₃C₂T_x material prepared by this hydrothermal method can be used in high performance supercapacitors.