Production of graphene by exfoliation of graphite in a volatile organic solvent
Production of graphene by exfoliation of graphite in a volatile organic solvent
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DOI：
10.1088/0957-4484/22/36/365601
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发表时间：
2011-09-07
期刊：
影响因子：
3.5
通讯作者：
Noh, Yong-Young
中科院分区：
文献类型：
--
作者：
Choi, Eun-Young;Choi, Won San;Noh, Yong-Young
报道了在挥发性溶剂1-丙醇中通过石墨的剥离来生产非官能化和非氧化的石墨烯。通过石墨粉末的温和超声处理和随后的离心获得石墨烯的稳定均匀分散体。通过原子力显微镜和透射电子显微镜观察到石墨烯单层的存在。通过在室温下空气干燥，简单且快速地从沉积的分散体中除去溶剂1-丙醇，而无需高温退火或真空干燥的帮助，这缩短了生产时间并且不会在石墨烯片中留下任何溶剂残留物。
The production of unfunctionalized and nonoxidized graphene by exfoliation of graphite in a volatile solvent, 1-propanol, is reported. A stable homogeneous dispersion of graphene was obtained by mild sonication of graphite powder and subsequent centrifugation. The presence of a graphene monolayer was observed by atomic force microscopy and transmission electron microscopy. The solvent, 1-propanol, from the deposited dispersion was simply and quickly removed by air drying at room temperature, without the help of high temperature annealing or vacuum drying, which shortens production time and does not leave any residue of the solvent in the graphene sheets.