石墨烯
材料科学
石墨
剥脱关节
超声
溶剂
化学工程
透射电子显微镜
单层
氧化石墨烯纸
色散(光学)
氧化石墨
退火(玻璃)
高定向热解石墨
拉曼光谱
复合材料
插层(化学)
吸附
纳米技术
石墨层间化合物
作者
Eunyoung Choi,Won San Choi,Young Boo Lee,Yong-Young Noh
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2011-09-07
卷期号:22 (36): 365601-365601
被引量:57
标识
DOI:10.1088/0957-4484/22/36/365601
摘要
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.
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