Skip to Main content Skip to Navigation
Journal articles

High Yield synthesis of aspect ratio controlled graphenic materials from anthracite coal in supercritical fluids

Abstract : This paper rationalizes the green and scalable synthesis of graphenic materials of different aspect ratios using anthracite coal as a single source material under different supercritical environments. Single layer, monodisperse graphene oxide quantum dots (GQDs) are obtained at high yield (55 wt %) from anthracite coal in supercritical water. The obtained GQDs are ∼3 nm in lateral size and display a high fluorescence quantum yield of 28%. They show high cell viability and are readily used for imaging cancer cells. In an analogous experiment, high aspect ratio graphenic materials with ribbon-like morphology (GRs) are synthesized from the same source material in supercritical ethanol at a yield of 6.4 wt %. A thin film of GRs with 68% transparency shows a surface resistance of 9.3 kΩ/sq. This is apparently the demonstration of anthracite coal as a source for electrically conductive graphenic materials.
Document type :
Journal articles
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-01323318
Contributor : Stéphane Toulin <>
Submitted on : Thursday, June 17, 2021 - 10:50:17 AM
Last modification on : Friday, June 18, 2021 - 9:30:44 AM

File

2016-076.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

Suchithra Padmajan Sasikala, Lucile Henry, Gulen Yesilbag Tonga, Kai Huang, Riddha Das, et al.. High Yield synthesis of aspect ratio controlled graphenic materials from anthracite coal in supercritical fluids. ACS Nano, American Chemical Society, 2016, 10 (5), pp.5293-5303. ⟨10.1021/acsnano.6b01298⟩. ⟨hal-01323318⟩

Share

Metrics

Record views

189

Files downloads

11