Elementary processes governing V<sub>2</sub>AlC chemical etching in HF
Youngsoo Kim, Athanasios Gkountaras, Odette Chaix‐Pluchery, Isabelle Gélard, Johann Coraux, C. Chapelier, Michel W. Barsoum, T. Ouisse
Abstract
MXenes are synthesized by chemically exfoliating well-defined V2AlC, single-crystal pillars. Exfoliation is studied as a function of orientation and time using HF. This reveals that no etching can take place by HF penetration through the basal planes.
Topics & Concepts
Raman spectroscopyIsotropic etchingMXenesExfoliation jointEtching (microfabrication)Materials scienceScanning electron microscopeX-ray photoelectron spectroscopyIsotropyAnalytical Chemistry (journal)NanotechnologyChemistryCrystallographyChemical engineeringOpticsComposite materialGrapheneChromatographyPhysicsEngineeringLayer (electronics)MXene and MAX Phase Materials2D Materials and ApplicationsFerroelectric and Negative Capacitance Devices