Facile Large Scale Production of Few-Layer Graphene Sheets by Shear Exfoliation in Volatile Solvent.
Facile Large Scale Production of Few-Layer Graphene Sheets by Shear Exfoliation in Volatile Solvent.
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DOI：
10.1166/jnn.2015.11119
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发表时间：
2015
影响因子：
--
通讯作者：
M. Akhtar;C. Park;Youn Sop Kim;Jong Seok Kim
中科院分区：
文献类型：
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作者：
M. Akhtar;C. Park;Youn Sop Kim;Jong Seok Kim
以天然石墨为原料，正丁醇为溶剂，采用机械剪切混合法合成了单层石墨烯。通过剪切混合器的石墨的液相剥离产生切割力持续20分钟，这将大量的石墨薄片转变成几层石墨烯。通过保持在室温下立即从沉积的分散体中除去溶剂。采用AFM、HR-TEM、XRD、FT-IR和拉曼光谱对沉积的石墨烯薄膜进行了表征。HR-TEM结果显示形成了很少的层和良好分散的石墨烯。拉曼光谱和XRD表征证实了石墨烯的良好质量和非氧化状态。
Few layer graphene sheets were synthesized from natural graphite through mechanical shear mixer in 1-butanol as solvent. The liquid phase exfoliation of graphite through the shear mixer generated incising forces for 20 minutes which changed the large amount of graphite's flake into few layer graphene. The removal of solvent from the deposited dispersion was performed immediately by keeping at the room temperature. The deposited graphene thin films were characterized by AFM, HR-TEM, XRD, FT-IR and Raman Spectroscopy. The HR-TEM results showed the formation of few layers and well dispersed graphene. The Raman spectroscopy and XRD characterization confirmed the good quality and non-oxidized state of graphene.