Substrate-free gas-phase synthesis of graphene sheets

被引:637
作者
Dato, Albert [1 ]
Radmilovic, Velimir [2 ]
Lee, Zonghoon [2 ]
Phillips, Jonathan [3 ]
Frenklach, Michael [4 ]
机构
[1] Univ Calif Berkeley, Appl Sci & Technol Grad Grp, Berkeley, CA 94720 USA
[2] Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA
[3] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[4] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA
关键词
D O I
10.1021/nl8011566
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We present a novel method for synthesizing graphene sheets in the gas phase using a substrate-free, atmospheric-pressure microwave plasma reactor. Graphene sheets were synthesized by passing liquid ethanol droplets into an argon plasma. The graphene sheets were characterized by transmission electron microscopy, electron energy loss spectroscopy, Raman spectroscopy, and electron diffraction. We prove that graphene can be created without three-dimensional materials or substrates and demonstrate a possible avenue to the large-scale synthesis of graphene.
引用
收藏
页码:2012 / 2016
页数:5
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