SASIKALA, Suchithra Padmajan; HENRY, Lucile; YESILBAG TONGA, Gulen; HUANG, Kai; DAS, Riddha; GIROIRE, Baptiste; MARRE, Samuel; ROTELLO, Vincent M.; PENICAUD, Alain; POULIN, Philippe; AYMONIER, Cyril

doi:10.1021/acsnano.6b01298

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

SASIKALA, Suchithra Padmajan
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

HENRY, Lucile
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

YESILBAG TONGA, Gulen
Department of Chemistry [Amherst]

Langue

Article de revue

Ce document a été publié dans

ACS Nano. 2016-05-24, vol. 10, n° 5, p. 5293-5303

American Chemical Society

Résumé en anglais

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.< Réduire

Mots clés en anglais

Supercritical fluids

Bioimaging

Coal

Conductive graphenic ribbons

Emissive graphene oxide quantum dots

DOI

http://dx.doi.org/10.1021/acsnano.6b01298

Project ANR

Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003

Origine

Importé de hal

Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026