Journal article
Two-Dimensional, Ordered, Double Transition Metals Carbides (MXenes)
ACS nano, v 9(10), pp 9507-9516
27 Oct 2015
PMID: 26208121
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The higher the chemical diversity and structural complexity of two-dimensional (2D) materials, the higher the likelihood they possess unique and useful properties. Herein, density functional theory (DFT) is used to predict the existence of two new families of 2D ordered, carbides (MXenes), M'2M″C2 and M'2M″2C3, where M' and M″ are two different early transition metals. In these solids, M' layers sandwich M″ carbide layers. By synthesizing Mo2TiC2Tx, Mo2Ti2C3Tx, and Cr2TiC2Tx (where T is a surface termination), we validated the DFT predictions. Since the Mo and Cr atoms are on the outside, they control the 2D flakes' chemical and electrochemical properties. The latter was proven by showing quite different electrochemical behavior of Mo2TiC2Tx and Ti3C2Tx. This work further expands the family of 2D materials, offering additional choices of structures, chemistries, and ultimately useful properties.
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Details
- Title
- Two-Dimensional, Ordered, Double Transition Metals Carbides (MXenes)
- Creators
- Babak Anasori - A.J. Drexel Nanomaterials Institute, Drexel University , Philadelphia, Pennsylvania 19104, United StatesYu Xie - Center for Nanophase Materials Sciences, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37381, United StatesMajid Beidaghi - A.J. Drexel Nanomaterials Institute, Drexel University , Philadelphia, Pennsylvania 19104, United StatesJun Lu - Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University , SE-581 83 Linköping, SwedenBrian C Hosler - Department of Materials Science & Engineering, Drexel University , Philadelphia, Pennsylvania 19104, United StatesLars Hultman - Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University , SE-581 83 Linköping, SwedenPaul R C Kent - Computer Science and Mathematics Division, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37381, United StatesYury Gogotsi - A.J. Drexel Nanomaterials Institute, Drexel University , Philadelphia, Pennsylvania 19104, United StatesMichel W Barsoum - Department of Materials Science & Engineering, Drexel University , Philadelphia, Pennsylvania 19104, United States
- Publication Details
- ACS nano, v 9(10), pp 9507-9516
- Publisher
- American Chemical Society; Washington, DC
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000363915300009
- Scopus ID
- 2-s2.0-84944397841
- Other Identifier
- 991014878160404721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology