Abstract
Top-down methods are convenient preparative methods for nanographenes, although the products consist of graphene fragments with a broad size distribution. We show that a combination of dialysis membranes (50, 25, 15, 8, and 2 kD) can conveniently separate nanographenes into five size distributions. The separated nanographenes can be employed as starting materials for carbon-based functional materials.
Highlights
Top-down methods are convenient preparative methods for nanographenes, the products consist of graphene fragments with a broad size distribution
We show that a combination of dialysis membranes (50, 25, 15, 8, and 2 kD) can conveniently separate nanographenes into five size distributions
By employing dialysis membranes with ve different pore sizes, the graphene fragments were divided into those with ve size distributions. This protocol permits the separation of speci c nanographenes from the mixture by combining two dialysis membranes
Summary
Top-down methods are convenient preparative methods for nanographenes, the products consist of graphene fragments with a broad size distribution. We show that a combination of dialysis membranes (50, 25, 15, 8, and 2 kD) can conveniently separate nanographenes into five size distributions. To separate the nanographene mixture, we employed dialysis membranes with ve different pore sizes (50, 25, 15, 8, and 2 kD).
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