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High-Throughput Production of High-Quality Graphene by Exfoliation of Expanded Graphite in Simple Liquid Benzene Derivatives

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Graphene, a perfect one-atomic thick two-dimensional lattice carbon allotrope, has drawn extensive attention of scientific communities since it was found several years ago, for its excellent mechanical characteristics, unique electrical properties and remarkable optical properties. However, one of the biggest obstacles to graphene research and applications is to obtain single-layer graphene in large quantity. Here, we reported a solvent-exfoliation method to massively produce high quality graphene. We showed that the expanded graphite can be effectively dispersed and exfoliated in several common benzene derivatives including chlorobenzene, benzyl chloride, o-dichlorobenzene and nitrobenzene, to produce high-quality graphene sheets, with a yield of about 3.9%. The obtained thin graphene nanosheets have been characterized by TEM, SEM and Raman spectroscopy.
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Document Type: Research Article

Publication date: 2010-11-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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