Book chapter
Synthesis of Two-Dimensional Titanium Nitride Ti4N3 (MXene)
MXenes, pp 79-94
2023
Abstract
We report on the synthesis of the first two-dimensional transition metal nitride, Ti4N3-based MXene. In contrast to the previously reported MXene synthesis methods - in which selective etching of a MAX phase precursor occurred in aqueous acidic solutions - here a molten fluoride salt is used to etch Al from a Ti4AlN3 powder precursor at 550 °C under an argon atmosphere. We further delaminated the resulting MXene to produce few-layered nanosheets and monolayers of Ti4N3T
x
, where T is a surface termination (F, O, or OH). Density functional theory calculations of bare, non-terminated Ti4N3 and terminated Ti4N3T
x
were performed to determine the most energetically stable form of this MXene. Bare and functionalized Ti4N3 are predicted to be metallic. Bare Ti4N3 is expected to show magnetism, which is significantly reduced in the presence of functional groups.
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Details
- Title
- Synthesis of Two-Dimensional Titanium Nitride Ti4N3 (MXene)
- Creators
- Patrick UrbankowskiBabak AnasoriTaron MakaryanDequan ErSankalp KotaPatrick L. WalshMengqiang ZhaoVivek B. ShenoyMichel W. BarsoumYury Gogotsi
- Contributors
- Yury Gogotsi (Editor)
- Publication Details
- MXenes, pp 79-94
- Publisher
- Jenny Stanford Publishing
- Number of pages
- 16
- Resource Type
- Book chapter
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Other Identifier
- 991020595604504721