Details

Autor(en) / Beteiligte

• Yadav, Priyanka
• Das, Anirban
• Sharma, Manoj Kumar
• Ash, Soumen
• Ganguli, Ashok Kumar

Titel

A biodegradable polymer-assisted efficient and universal exfoliation route to a stable few layer dispersion of transition metal dichalcogenides

Ist Teil von

• Materials chemistry and physics, 2022-01, Vol.276, p.125347, Article 125347

Ort / Verlag

Lausanne: Elsevier B.V

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Quasi two-dimensional transition metal dichalcogenides (2D-TMDs) with 1–5 layers have been obtained by developing an effective and highly efficient bio-based polymer-solvent system by mild ultrasonication. The hydroxypropyl cellulose (HPC)/1-Butanol (BuOH) system was determined to be an universal polymer-solvent system to effectively exfoliate the bulk transition metal dichalcogenides (TMDs) MoS2, TiS2, WS2, NbS2 and MoSe2. The above process is significant as it is a room temperature liquid phase exfoliation method that leads to a stable dispersion of a few layer 2D-TMD having significant proportion (>50%) of exfoliated material which remains stable in suspension for several months. [Display omitted] •A simple and biodegradable polymer assisted exfoliation route of 2D TMDs•Produces exfoliated few layers of transition metal dichalcogenides•Yield obtained is significantly larger than previously reported•Exfoliated material is stable in suspension for several months•Successfully tested method for variety of TMDs (MoS2, TiS2, WS2, NbS2 and MoSe2)