Journal article
One MAX phase, different MXenes: A guideline to understand the crucial role of etching conditions on Ti3C2Tx surface chemistry
Applied surface science, v 530, 147209
15 Nov 2020
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
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•The nature of etching agent modifies the surface chemistry of Ti3C2Tx MXene.•Combined XRD, Raman and XPS for an in-depth characterization of Ti3C2Tx MXene.•HER is a probe reaction for the characterization of Ti3C2Tx surface properties.•Various properties are obtained for Ti3C2Tx depending on the synthesis conditions.
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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Details
- Title
- One MAX phase, different MXenes: A guideline to understand the crucial role of etching conditions on Ti3C2Tx surface chemistry
- Creators
- Mohamed Benchakar - University of PoitiersLola Loupias - University of PoitiersCyril Garnero - Institut PprimeThomas Bilyk - Institut PprimeCláudia Morais - University of PoitiersChristine Canaff - University of PoitiersNadia Guignard - University of PoitiersSophie Morisset - University of PoitiersHanna Pazniak - Institut Pprime, UPR 3346 CNRS, Université de Poitiers, ISAE-ENSMA, BP 30179, 86962 Futuroscope-Chasseneuil Cedex, FranceSimon Hurand - Institut PprimePatrick Chartier - Institut PprimeJérôme Pacaud - Institut PprimeVincent Mauchamp - Institut PprimeMichel W. Barsoum - Drexel UniversityAurélien Habrioux - University of PoitiersStéphane Célérier - University of Poitiers
- Publication Details
- Applied surface science, v 530, 147209
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000562343800007
- Scopus ID
- 2-s2.0-85088667455
- Other Identifier
- 991019168493104721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical
- Materials Science, Coatings & Films
- Physics, Applied
- Physics, Condensed Matter