Synthesis of high quality few layer graphene from the exfoliation of graphite
This study aims to synthesize high quality few layer graphene through exfoliation of graphite, accomplished through continuous addition of a Triton X-100 surfactant solution to a graphite suspension during sonication lasting for 50, 80, 110, 140, 170, and 200 min, respectively. The resulting suspension was then filtrated to separate out the graphene, before being tested for quality through scanning electron microscopy, X-ray diffraction and Raman spectroscopy. It was revealed that graphite had been exfoliated into few layer graphene after a short sonication time (less than 50 min). And the quality of graphene was improved as the sonication time increased, indicated by the reduced number of graphene layers. This completely physical method of graphene synthesis provides a simple way to achieve the highly desired few layer graphene, and will hopefully allow for greater use of graphene in industry and its implementation into new technology.
Physics, Astronomy, and Materials Science
Bai, Jincheng, Daniel R. Soden, and Lifeng Dong. "Synthesis of High Quality Few Layer Graphene from the Exfoliation of Graphite." ECS Transactions 61, no. 7 (2014): 3.