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One MAX phase, different MXenes: A guideline to understand the crucial role of etching conditions on Ti3C2Tx surface chemistry

Open access
Benchakar, Mohamed, Loupias, Lola, Garnero, Cyril, Bilyk, Thomas, Morais, Cláudia, Canaff, Christine, Guignard, Nadia, Morisset, Sophie, Pazniak, Hanna, Hurand, Simon, Chartier, Patrick, Pacaud, Jérôme, Mauchamp, Vincent, Barsoum, Michel W., Habrioux, Aurélien, Célérier, Stéphane·2020·Applied Surface Science

Abstract

Abstract MXenes are a new, and growing, family of 2D materials with very promising properties for a wide variety of applications. Obtained from the etching of MAX phases, numerous properties can be targeted thanks to the chemical richness of the precursors. Herein, we highlight how etching agents govern surface chemistries of Ti3C2Tx, the most widely studied MXene to date. By combining characterization tools such as X-ray diffraction, X-ray photoelectron, Raman and electron energy loss spectroscopies, scanning and transmission electron microscopies and a surface sensitive electrochemical reaction – the hydrogen evolution reaction, HER – we clearly demonstrate that the etching agent (HF, LiF/HCl or FeF3/HCl) strongly modifies the nature of surface terminal groups (F, OH and/or O), oxidation sensitivity, delamination ability, nature of the inserted species, interstratification, concentration of defects and size of flakes. Beyond showing how using these different characterization tools to analyze MXenes, this work highlights that the MXene synthesis routes can influence targeted applications.

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Metadata

Authors
Benchakar, M., Loupias, L., Garnero, C., Bilyk, T., Morais, C., Canaff, C., Guignard, N., Morisset, S., Pazniak, H., Hurand, S., Chartier, P., Pacaud, J., Mauchamp, V., Barsoum, M. W., Habrioux, A., & Célérier, S.
Venue
Applied Surface Science
Publisher
Elsevier BV
Published
2020-11
Volume
530
Pages
147209
ISSN
0169-4332 (ISSN-L)
OpenAlex
W3044354659
Cited by
384
References
63
FWCI
15.10
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: One MAX phase, different MXenes: A guideline to understand the crucial role of etching conditions on Ti3C2Tx surface chemistry. https://app.cochat.ai/papers/10.1016/j.apsusc.2020.147209
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Benchakar, M., Loupias, L., Garnero, C., Bilyk, T., Morais, C., Canaff, C., Guignard, N., Morisset, S., Pazniak, H., Hurand, S., Chartier, P., Pacaud, J., Mauchamp, V., Barsoum, M. W., Habrioux, A., & Célérier, S. (2020). One MAX phase, different MXenes: A guideline to understand the crucial role of etching conditions on Ti3C2Tx surface chemistry. Applied Surface Science. https://doi.org/10.1016/j.apsusc.2020.147209

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.