Preparation and Characterization of Reduced Graphene Oxide Sheets via Water-Based Exfoliation and Reduction Methods
By V. Loryuenyong, Krit Totepvimarn, Passakorn Eimburanapravat, Wanchai Boonchompoo, A. Buasri. 2013
371 citations recorded by the source corpus.
This research studied the synthesis of graphene oxide and graphene via a low-cost manufacturing method. The process started with the chemical oxidation of commercial graphite powder into graphite oxide by modified Hummer’s method, followed by the exfoliation of graphite oxide in distilled water using the ultrasound frequency from a laboratory ultrasonic bath. Finally, the oxygen functional groups on exfoliated graphite oxide or graphene oxide were eliminated by stirring in hot distilled water at 95°C, as a replacement for highly toxic and dangerously unstable hydrazine. The results assured that stirring in hot distilled water could give the product of graphene or reduced graphene oxide. The samples were characterized by FTIR, XRD, TGA, Raman spectroscopy, SEM, and TEM methods.
Subfields: Biomedical Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/6f540e47a372c99661613fbbae59694af14fa7b8
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Citations in the corpus
- Easy preparation of ultrathin reduced graphene oxide sheets at a high stirring speed (2015, neutral): “7(a), graphite particles are in a platelet-like crystalline form of carbon [30].”
- Selective band gap manipulation of graphene oxide by its reduction with mild reagents (2015, background): “There is also information regarding thermal reduction of graphene oxide in water using similar conditions without the presence of reduction agents [20].”
- Influence of the reduction strategy in the synthesis of reduced graphene oxide (2017, background): “Finally, a third step (III) for temperatures above 475 °C was observed, which was a consequence of the material thermal degradation (unstable carbon remaining in the structure yields CO and CO2 [38]), losing around 30% of the remaining mass.”
- A Simple Approach to Stepwise Synthesis of Graphene OxideNanomaterial (2015, background): “The main properties include: 1) Hygroscopicity, 2) Dispersibility and 3) Toxicity [23-31].”