Chemical Mass Production of Graphene Nanoplatelets in ∼100% Yield

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• 作者：Ayrat M. Dimiev ; Gabriel Ceriotti ; Andrew Metzger ; Nam Dong Kim ; James M. Tour
• 刊名：ACS Nano
• 出版年：2016
• 出版时间：January 26, 2016
• 年：2016
• 卷：10
• 期：1
• 页码：274-279
• 全文大小：345K
• ISSN：1936-086X

文摘

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.