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Book chapter
Two-Dimensional, Ordered, Double Transition Metals Carbides (MXenes)
MXenes, pp 55-77
2023
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 Mo2TiC2T
x
, Mo2Ti2C3T
x
, and Cr2TiC2T
x
(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 Mo2TiC2T
x
and Ti3C2T
x
. 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 AnasoriYu XieMajid BeidaghiJun LuBrian C. HoslerLars HultmanPaul R. C. KentYury GogotsiMichel W. Barsoum
- Contributors
- Yury Gogotsi (Editor)
- Publication Details
- MXenes, pp 55-77
- Publisher
- Jenny Stanford Publishing
- Number of pages
- 23
- Resource Type
- Book chapter
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Other Identifier
- 991020595604204721