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. 2018 Sep 28;8:14525. doi: 10.1038/s41598-018-32741-3

Figure 1.

Figure 1

(a) Mechanism of electrochemical exfoliation: Graphite evolves to graphene as sulfate intercalation and oxidation proceeds. (b) Prior efforts to use this concept have always resulted in the graphite working electrode disintegrating during intercalation (C.E. denotes the counter electrode). (c) Schematic illustration of our process for electrochemical exfoliation of graphite flakes in a permeable, expandable container.