Graphene Oxide: Determination of the Lateral Dimension of Graphene Oxide Nanosheets Using Analytical Ultracentrifugation (Small 7/2015)

The lateral dimensions of graphene oxide nanosheets are explored by W. Peukert and co-workers on page 814. Analytical ultracentrifugation is used to obtain the sedimentation behavior of graphene oxide platelets that are single layered but highly polydisperse in lateral dimensions. Atomic force microscopy and image analysis are used as a benchmark. The fast and precise investigation using analytical ultracentrifugation possesses great potential as it requires significantly less experimental effort than the conventionally applied image analysis, and can be used for multi-sample analysis.