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Exfoliation of 2D materials by high shear mixing
| Content Provider | Scilit |
|---|---|
| Author | Biccai, Sonia Barwich, Sebastian Boland, Daniel Harvey, Andrey Hanlon, Damien McEvoy, Niall Coleman, Jonathan N. |
| Copyright Year | 2018 |
| Description | Journal: 2d Materials While it has been demonstrated that large scale liquid exfoliation of graphene is possible using high-shear exfoliation, it has not yet been shown to be applicable to a broader range of layered materials. In addition, it would be useful to determine whether the mechanisms reported for shear exfoliation of graphene also apply to other 2D materials. In this work we show that previous models describing high-shear exfoliation of graphene apply to MoS2 and WS2. However, we find the minimum shear rate required to exfoliate MoS2 and WS2 to be ~3104 s-1, somewhat higher than the value for graphene. We also demonstrate the scalability of shear exfoliation of WS2. By measuring and then optimising the scaling parameters, shear exfoliation of WS2 is shown to be capable of reaching concentrations of 1.82 g/L in 6 hours and demonstrating a maximum production rate of 0.95 g/hour. |
| Related Links | http://iopscience.iop.org/article/10.1088/2053-1583/aae7e3/pdf |
| ISSN | 20531583 |
| e-ISSN | 20531583 |
| DOI | 10.1088/2053-1583/aae7e3 |
| Journal | 2d Materials |
| Issue Number | 1 |
| Volume Number | 6 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2018-10-12 |
| Access Restriction | Open |
| Subject Keyword | Journal: 2d Materials Shear Exfoliation Exfoliation of Graphene |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Mechanics of Materials Condensed Matter Physics Materials Science Mechanical Engineering |
