Elastic properties and tensile strength of 2D Ti3C2Tx MXene monolayers

Abstract Two-dimensional (2D) transition metal nitrides and carbides (MXenes), represented by Ti 3 C 2 T x , have broad applications in flexible electronics, electromechanical devices, and structural membranes due to their unique physical and chemical properties. Despite the Young’s modulus of 2D Ti 3 C 2 T x has been theoretically predicted to be 0.502 TPa, which has not been experimentally confirmed so far due to the measurement is extremely restricted. Here, by optimizing the sample preparation, cutting, and transfer protocols, we perform the direct in-situ tensile tests on monolayer Ti 3 C 2 T x nanosheets using nanomechanical push-to-pull equipment under a scanning electron microscope. The effective…

• IR
  Innovative Research Group Project of the National Natural Science Foundation of China

  Award: 52321002
• NN
  National Natural Science Foundation of China

  Awards: 52275149, 52105145, 52321002, 12274124
• FR
  Fundamental Research Funds for the Central Universities
• PF
  Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning