Abstract
Graphite flakes were divided into two equal parts Part A and Part B. Part A was thermally shocked at 800°C under inert atmosphere of argon for two min before exfoliation under sonic tip while Part B was exfoliated as such using acetonitrile (ACN) as exfoliating media in both cases at 15-20°C. The concentration of the graphene as a result of exfoliation and centrifugation at 500 rpm for 45 min in both cases were determined. After ten hours of sonication the concentration of graphene in Part A is >12mg/ml with few layered thickness while that of Part B was <5mg/ml consisting of more layers than Part A. UV spectroscopy, Raman, Transmission Electron Microscopy and Scanning Electron Microscopy (SEM) were used for the study of these nanoflakes.
| Original language | English |
|---|---|
| Pages (from-to) | 822-827 |
| Number of pages | 6 |
| Journal | Journal of the Chemical Society of Pakistan |
| Volume | 38 |
| Issue number | 5 |
| State | Published - 2016 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2016, Chemical Society of Pakistan. All rights reserved.
Keywords
- Centrifuge
- Concentration
- Graphene layers
- SEM
- TEM
- Thermal treatment
ASJC Scopus subject areas
- General Chemistry