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 Ti4N3Tx, where T is a surface termination (F, O, or OH). Density functional theory calculations of bare, non-terminated Ti4N3 and terminated Ti4N3Tx 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.

Keywords

NitrideMaterials scienceMagnetismMonolayerDensity functional theoryMetalEtching (microfabrication)FluorideTransition metalAqueous solutionSurface modificationPhase (matter)TitaniumChemical engineeringInorganic chemistryNanotechnologyPhysical chemistryLayer (electronics)ChemistryComputational chemistryOrganic chemistryMetallurgyCatalysis

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Publication Info

Year
2016
Type
article
Volume
8
Issue
22
Pages
11385-11391
Citations
1232
Access
Closed

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Cite This

Patrick Urbankowski, Babak Anasori, Taron Makaryan et al. (2016). Synthesis of two-dimensional titanium nitride Ti<sub>4</sub>N<sub>3</sub>(MXene). Nanoscale , 8 (22) , 11385-11391. https://doi.org/10.1039/c6nr02253g

Identifiers

DOI
10.1039/c6nr02253g
PMID
27211286

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Data completeness: 81%