articleChemistry of MaterialsApr 3, 2019Closed access

High-Temperature Behavior and Surface Chemistry of Carbide MXenes Studied by Thermal Analysis

MSMykola SeredychCEChristopher E. ShuckDPDavid PintoMAMohamed AlhabebEPEliot Precetti

Drexel University

Indexed incrossref

Abstract

Two-dimensional (2D) transition-metal carbides and nitrides (MXenes) have attracted significant attention due to their electronic, electrochemical, chemical, and optical properties. However, understanding of their thermal stability is still lacking. To date, MXenes are synthesized via top-down wet chemical etching, which intrinsically results in surface terminations. Here, we provide detailed insight into the surface terminations of three carbide MXenes (Ti3C2Tx, Mo2CTx, and Nb2CTx) by performing thermal gravimetric analysis with mass spectrometry analysis (TA–MS) up to 1500 °C under a He atmosphere. This specific technique enables probing surface terminations including hydroxyl (−OH), oxy (═O), and fluoride…

Citation impact

499
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19.36
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100%
References
53
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Authors

9

Topics & keywords

Topics
Keywords
  • MXenes
  • Tetramethylammonium hydroxide
  • Thermal stability
  • Hydrofluoric acid
  • Thermogravimetric analysis
  • Chemical engineering
  • Carbide
  • Etching (microfabrication)
UN Sustainable Development Goals
  • Clean water and sanitation
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