Chemical Mass Production of Graphene Nanoplatelets in ∼100% Yield.
basic_science · Level V
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- Record sourced from PubMed, PMID 26580092.
- Also identified by DOI 10.1021/acsnano.5b06840.
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Abstract
Successful application of graphene is hampered by the lack of cost-effective methods for its production. Here, we demonstrate a method of mass production of graphene nanoplatelets (GNPs) by exfoliation of flake graphite in the tricomponent system made by a combination of ammonium persulfate ((NH4)2S2O8), concentrated sulfuric acid, and fuming sulfuric acid. The resulting GNPs are tens of microns in diameter and 10-35 nm in thickness. When in the liquid phase of the tricomponent media, graphite completely loses its interlayer registry. This provides a ∼100% yield of GNPs from graphite in 3-4 h at room temperature or in 10 min at 120 °C.