| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
2D Materials: Preparation, Properties, Modeling & Applications
|
| Presentation Title |
“Temperature”, a Key Parameter for Graphene Exfoliation In Water |
| Author(s) |
Iakovos Tzanakis, Amanpreet Kaur, Dmitry Eskin |
| On-Site Speaker (Planned) |
Iakovos Tzanakis |
| Abstract Scope |
Graphene dispersions in aqueous solutions are highly desirable for various applications such as biomedicines, membranes, coatings, inkjet printing and more. Recent novel research has focussed on developing a green approach for scalable production of graphene. However, one important parameter which is often neglected is the bulk temperature of the processing liquid. Herein, we demonstrate sonication-assisted liquid phase exfoliation of graphite powder to produce graphene nanosheets in pure water at different temperatures ranging from 10-60 oC for two different optimized input generator powers at 50% and 60%. Preliminary UV-Vis analysis revealed exfoliation, while stability and uniformity of dispersions were improved with increasing temperature. Specifically, optimal temperature conditions for graphene exfoliation in water were found to be in the range of 40-60 oC. We further confirm the successful exfoliation of high-quality graphene sheets in the optimized sample with the aid of characterisation techniques such as Raman, TEM and AFM. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nanotechnology, Sustainability, Process Technology |