Fast and fully-scalable synthesis of reduced graphene oxide
University of Tabriz · Pohang University of Science and Technology
Abstract
Exfoliation of graphite is a promising approach for large-scale production of graphene. Oxidation of graphite effectively facilitates the exfoliation process, yet necessitates several lengthy washing and reduction processes to convert the exfoliated graphite oxide (graphene oxide, GO) to reduced graphene oxide (RGO). Although filtration, centrifugation and dialysis have been frequently used in the washing stage, none of them is favorable for large-scale production. Here, we report the synthesis of RGO by sonication-assisted oxidation of graphite in a solution of potassium permanganate and concentrated sulfuric acid followed by reduction with ascorbic acid prior to any washing processes. GO loses its…
Citation impact
- FWCI
- 21.48
- Percentile
- 100%
- References
- 33
Authors
3Topics & keywords
- Graphene
- Exfoliation joint
- Ascorbic acid
- Sonication
- Oxide
- Graphite
- Potassium permanganate
- Materials science