Elastic properties of 2D Ti3C2Tx MXene monolayers and bilayers
By Alexey Lipatov, Haidong Lu, Mohamed Alhabeb, B. Anasori, Alexei Gruverman, Yury Gogotsi, Alexander Sinitskii. Science Advances, 2018
899 citations recorded by the source corpus.
Nanoindentation experiments show that Ti3C2Tx MXenes have a higher elastic modulus than other solution-processed 2D materials. Two-dimensional (2D) transition metal carbides and nitrides, known as MXenes, are a large class of materials that are finding numerous applications ranging from energy storage and electromagnetic interference shielding to water purification and antibacterial coatings. Yet, despite the fact that more than 20 different MXenes have been synthesized, the mechanical properties of a MXene monolayer have not been experimentally studied. We measured the elastic properties of monolayers and bilayers of the most important MXene material to date, Ti3C2Tx (Tx stands for surface termination). We developed a method for preparing well-strained membranes of Ti3C2Tx monolayers and bilayers, and performed their nanoindentation with the tip of an atomic force microscope to record the force-displacement curves. The effective Young’s modulus of a single layer of Ti3C2Tx was found to be 0.33 ± 0.03 TPa, which is the highest among the mean values reported in nanoindentation experiments for other solution-processed 2D materials, including graphene oxide. This work opens a pathway for investigating the mechanical properties of monolayers and bilayers of other MXenes and extends the already broad range of MXenes’ applications to structural composites, protective coatings, nanoresonators, and membranes that require materials with exceptional mechanical properties.
Subfields: Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/a0d5ef23bbee791f1e5f41b2a71180b1d548b052
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In Materials Chemistry
- J. Rosen
- Armin VahidMohammadi
- Yury Gogotsi
- Han Zhang
- D. Papageorgiou
- E. Bilotti
- Michel W. Barsoum
- Husam N. Alshareef
Citations in the corpus
- Multifunctional epoxy nanocomposites reinforced by two-dimensional materials: A review (2021, background): “The Ti3C2Tx layers are connected by strong hydrogen bonds, so interlayer sliding is depressed and the increase of layer number does not affect its mechanical properties pronouncedly [37].”