Journal article
Ultralarge Flakes of Ti3C2T x MXene via Soft Delamination
ACS nano, v 16(9), pp 13695-13703
27 Sep 2022
Abstract
Two-dimensional (2D) titanium carbide MXene (Ti3C2T x ) has attracted significant attention due to its combination of properties and great promise for various applications. The size of the 2D sheets is a critical parameter affecting multiple properties of assembled films, fibers and 3D structures. The increased lateral size of MXene flakes can benefit not only their assemblies by improving the interflake contacts and alignment but also fundamental studies at the individual flake level, allowing for facile patterning and investigation of intrinsic physical properties of MXenes. Increasing the average size of the parent MAX phase is one of the strategies previously used to increase the flake size of the resultant MXene. Here, we show that the protocol used for the next step of the synthesis procedure, delamination of multilayer MXene into individual nanosheets, significantly affects the lateral size of the resultant flakes. We developed a soft delamination approach, which prevents fracture of flakes and preserves their size. Combining this approach with the large-grain Ti3AlC2 MAX phase precursor, we achieved individual flakes of up to 40 μm in lateral size. These flakes can be used for patterning multiple contacts and fabrication of field-effect transistors for multiprobe electrical characterization and other measurements. These findings indicate the importance of controlling the delamination process in order to achieve large MXene flakes and improve properties of MXene-based materials and devices.
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Details
- Title
- Ultralarge Flakes of Ti3C2T x MXene via Soft Delamination
- Creators
- Mikhail Shekhirev - Drexel UniversityJeffrey Busa - University of Nebraska–LincolnChristopher E. Shuck - Drexel UniversityAngel Torres - University of Nebraska–LincolnSaman Bagheri - University of Nebraska–LincolnAlexander Sinitskii - University of Nebraska–LincolnYury Gogotsi - Drexel University, Materials Science and Engineering
- Publication Details
- ACS nano, v 16(9), pp 13695-13703
- Publisher
- American Chemical Society; Washington, DC
- Number of pages
- 9
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; A.J. Drexel Nanomaterials Institute
- Web of Science ID
- WOS:000886645200001
- Scopus ID
- 2-s2.0-85135945753
- Other Identifier
- 991019173456104721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology