Preparation of graphene by using an intense cavitation field in a pressurized ultrasonic reactor.

@article{tengl2012PreparationOG,
  title={Preparation of graphene by using an intense cavitation field in a pressurized ultrasonic reactor.},
  author={V{\'a}clav {\vS}tengl},
  journal={Chemistry},
  year={2012},
  volume={18 44},
  pages={14047-54}
}
A new and efficient method to produce a large quantity of high-quality and non-oxidized graphene flakes from powdered natural graphite by using a high-intensity cavitation field in a pressurized ultrasonic reactor is demonstrated. TEM and selected-area electron diffraction (SAED) confirmed the ordered graphite crystal structure of graphene. Atomic force microscopy (AFM) was used to examine the thickness of the graphene sheets. The delamination (exfoliation) of natural graphite in the liquid… CONTINUE READING