Issue 20, 2017, Issue in Progress

Ti3BN monolayer: the MXene-like material predicted by first-principles calculations

Abstract

The discovery of graphene and other two-dimensional (2D) materials has set the foundation for exploring and designing novel single layered sheets. The family of 2D materials encompasses a wide selection of compositions including almost all the elements of the periodic table and they have the potential to play a fundamental role in the future of electronics, composite materials and energy technology. Therefore, searching for new 2D materials is a big challenge in materials science. In this work, we theoretically designed a monolayer of Ti3BN following the strategy of “atomic transmutation”. The Ti3BN monolayer can be considered as three Ti-atomic layers being interleaved with one N-atomic layer and one B-atomic layer, in the sequence of Ti1–N–Ti2–B–Ti3. The moderate cohesive energy, positive phonon frequencies and high melting point are the best guarantees for good stability of Ti3BN. Based on a global minimum structures search using the particle-swarm optimization (PSO) method, Ti3BN is the lowest energy structure in 2D space, which holds great promise for the realization of layered Ti3BN in experiment. Based on density functional theory (DFT) calculations, Ti3BN is intrinsically metallic and its electronic properties can be modulated by varying the surface groups, such as OH or F-termination. If realized in experiment, it may find applications in many aspects.

Graphical abstract: Ti3BN monolayer: the MXene-like material predicted by first-principles calculations

Supplementary files

Article information

Article type
Paper
Submitted
12 Jan 2017
Accepted
10 Feb 2017
First published
17 Feb 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 11834-11839

Ti3BN monolayer: the MXene-like material predicted by first-principles calculations

D. Wang, Z. Sun, D. Han, L. Liu and L. Niu, RSC Adv., 2017, 7, 11834 DOI: 10.1039/C7RA00483D

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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