Plasmon-assisted MXene grafting: tuning of surface termination and stability enhancement

0548476 - FZÚ 2022 RIV GB eng J - Journal Article
Olshtrem, A. - Chertopalov, Sergii - Guselnikova, O. - Valiev, R.R. - Cieslar, M. - Miliutina, E. - Elashnikov, R. - Fitl, Přemysl - Postnikov, P. - Lančok, Ján - Švorčík, V. - Lyutakov, O.
Plasmon-assisted MXene grafting: tuning of surface termination and stability enhancement.
2D Materials. Roč. 8, č. 4 (2021), č. článku 045037. ISSN 2053-1583. E-ISSN 2053-1583
R&D Projects: GA MŠMT(CZ) EF16_019/0000760; GA ČR(CZ) GA21-09277S
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : MXene * plasmon-assisted chemistry and grafting * surface termination * superhydrophobic and self-repellent coating * oxidation protection
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 6.861, year: 2021
Method of publishing: Limited access
https://doi.org/10.1088/2053-1583/ac27c0

The properties of MXenes, new generation of 2D materials, are determined by the surface terminations, which depends on flake preparation method. Changing the surface termination chemical groups can significantly modify the MXene flake properties and functionality. However, the common methods of MXene flake surface chemistry tuning require high-energy treatments and often lead to flake damage. In this work, we propose a plasmon-assisted chemical transformation for tuning the surface chemistry and termination of MXene flakes. The plasmon resonance was directly excited on MXene flakes and induced the generation of highly reactive radicals from electrostatically absorbed iodonium salt cations, leading to immediate grafting of the created radicals to the flake edges and basal planes.
Permanent Link: http://hdl.handle.net/11104/0324528