Optimization of graphene production by exfoliation of graphite in supercritical ethanol: A response surface methodology approach

- Preparation of graphene sheets from graphite powder via exfoliation in supercritical ethanol.
- The impacts of temperature, pressure and water content on the exfoliation yield were obtained.
- The concept of Hansen solubility parameters was used for analysis of supercritical exfoliation process.
- Applying the response surface methodology (RSM) to study the effects of process parameters on the exfoliation yield and its optimization.