Graphite sulphate is used as a precursor to graphene for the first time. The positively charged graphene layers react with water to yield a processable graphene derivative. The unprecedented low density of defects is determined to be 0.06% on average and may open the way for electronic applications.
S. Eigler, Chem. Commun., 2015, 51, 3162 DOI: 10.1039/C4CC09381J
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