| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
2D Materials – Preparation, Properties, Modeling & Applications
|
| Presentation Title |
Laser Expansion of Intercalated Graphite for the Production of High Quality Liquid Phase Exfoliated Graphene |
| Author(s) |
Yarjan Abdul Samad, Rami Elkaffas |
| On-Site Speaker (Planned) |
Yarjan Abdul Samad |
| Abstract Scope |
As graphene increasingly integrates into various industries, the necessity to produce high-quality graphene sheets on a large scale becomes crucial. Here, we present a unique approach for large-scale production of graphene through laser-assisted graphite expansion followed by ultrasonic exfoliation.The present method utilizes laser technology to significantly expand graphite, achieving an expansion rate of 800 mL/g with a remarkably low energy consumption of just two watts per second.The graphene samples exhibited high quality (ID/IG) ~ 0.13 and few layers with a (I2D/IG) ~ 0.52.Through filtration technique, free-standing films with different thicknesses (11-69 μm) were successfully prepared, reaching significant electrical conductivity up to (~ 1707 S/cm). Graphene film with a 11 μm thickness achieve the highest absolute effectiveness (SSE/t) of ~ 58666 dB cm2 g−1, surpassing most current graphene and MXene films, which typically present values in the range of 10000 to 40000 dB cm2 g−1 . |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nanotechnology, Electronic Materials, Powder Materials |