Journal
CRYSTALS
Volume 9, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/cryst9030150
Keywords
graphene; graphite flake; liquid pulsed discharge; shock wave
Funding
- Project of State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology [ZDKT18-01]
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Few-layer graphene nanosheets were produced by pulsed discharge in graphite micro-flake suspension at room temperature. In this study, the discharging current and voltage data were recorded for the analysis of the pulsed discharge processes. The as-prepared samples were recovered and characterized by various techniques, such as TEM, SEM, Raman, XRD, XPS, FT-IR, etc. The presence of few-layer graphene (3-9 L) in micrometer scale was confirmed. In addition, it is investigated that the size of recovered graphene nanosheets are influenced by the initial size of utilized graphite micro-flake powder. Based on the process of pulsed discharge and our experimental results, the formation mechanism of few-layer graphene was discussed. The influence of charging voltage on as-prepared samples is also investigated.
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